You must try your best to wear hijab or make yourself in a situation which allows you to wear it. The family must not be obeyed when they ask you to do something against Islamic laws.
May Allah grant you success
Well, people dream all sorts of things, some of them have meaning and some of them don't. If she is praying for this and you know she is praying for this, it makes sense that you might dream about it. Possibly your subconscious is thinking about it even if your conscious mind isn't.
If her brother has expressed an interest in marrying you, and it is a reasonable possibility for you to marry him, you could consider it. It is a blessing to have an opportunity to marry someone compatible whom you might have some trust in. It could be nice to marry a friend's brother (although keep in mind it can also change the nature of your friendship, especially if there are marriage problems). Of course there is no guarantee that the marriage would be happy but it is worth considering if you think he might be a compatible spouse. However you should make your decision based on the real life circumstances around you, not just the dreams.
If he hasn't expressed an interest in getting married then there is no reason to give it thought - he may or may not be ready to get married right now.
Anyway, you are lucky to have a friend who likes you so much that she wants you to be family. :)
You should marry the spouse who is most religiously compatible with you.
Not wearing hijab openly is an act of fisq and is a sin. One must remember that such a woman will raise their future kids if Allah blesses them. If a young girl was to see her mother not wearing hijab or dressed in ways which are not proper, she may imitate this.
The same applies for a woman in choosing a man. Does she want a man who doesn't pray and who may do sins in front of her kids?
May Allah grant you success
Yes. No non Mahram man should be allowed to see your photo with out Hijab.
You should do whatever you can to prevent non Mahram men to see your photos with out Hijab.
After doing your best to prevent or stop wrong, you will not be responsible for the sins of others even at your own home. You must do whatever you can, and no more than your ability.
First Valid Nikah will establish the marriage bond, while the other Nikah will be just for show and will not add on the valid Nikah.
It is permissible to do the second Nikah for showing people.
This is a big question - many people have challenges in their personalities or temperaments that are long-term projects to work on. However, here is something that you could consider and see if it has any helpful advice ("Imam Ali and Islamic Anger Management by Shaykh Mohamed Ali Ismail")
(I recall he did a workshop some years ago at an Islamic event on practical tips for anger management but I don't know if it is available online; you could try to find it)
Also if you haven't already, you could look through books such as this: https://www.al-islam.org/jami-al-saadat-collector-felicities-muhammad-mahdi-naraqi
Thank you for your question. The ultimate wisdom behind God's actions is unknown and simply being born into a non-Muslim family does not mean that a person is unduly disadvantaged, because God judgement of people is not linear. His Justice will prevail and be accorded to people according to their situations and what He has blessed them with. He does what is in the best interest of His servants and it is His creation that is unjust to their loving all-Merciful Creator. There are some traditions to indicate that there was a level of test prior to our creation in this world and that determined certain variables in this world. But ultimately the capacity of each creature is known by God, so even if these traditions are not accepted, the issue of who is born into what family, at what time, and all the other innumerable factors surrounding an individual's existence all come back to the Knowledge and Wisdom of God.
May you always be successful.
Yes of course. It is good to discuss such matters with trusted person like your family members because they will guide you to the right facts and try to protect you from misleading information.
We should encourage our young ones to be more frank with their trusted family members in such matters.
Real Muslim is the person who believes in Islam and behaves in peaceful way with people (المسلم من سلم المسلمون من لسانه ويده))
Every Muslim is required to practice Islamic teachings in his life especially when dealing with people. Those Muslims who do not practice fairness and justice with others are blames in Quran ( O, Those who believed, why do you say what you do not practice? (Sura Al-Saff, Verse 2).
As being nice to people is one of the best deeds in Islam, being bad and harming people is very bad and it can lead tp punishment in this life and hereafter. When harming an animal is forbidden in Islam (e.g. The Hadeeth about a Muslim woman who will be in hellfire because she tortured a cat), so what about harming a human being?
No one from us can judge who is good Muslim and who is not as Allah (SWT) knows what all creatures did and ae doing and will be doing in the future and He judges who is good and who is not. But Allah (SWT) said clearly (The most honorable of you with Allah is the most practicing Taqwa (piousness). Sura Al-Hujuraat, verse 13.
Those who pray and fast and worship Allah (SWT) but misbehave and harm others will loose their worship reward to their victims, and might be forced to take the sins of their victims.
The Hadeeth says ( Best of people are those who benefit people) and another Hadeeth says (Worst of people are those who harm people).
This shows that the spirit of Islam is to be good to others.
There is really no such thing as a "good Muslim" and a "bad Muslim", these are labels we have invented. A person is a Muslim if they profess the shahadatayn. However, a Muslim will be judged in the next life like anyone else and a person who has harmful behaviour or bad ethics will be held responsible for that.
There are a number of hadith saying not to look at someone's outward signs of religiosity (such as praying or fasting) to judge their character but rather to look at how they act with other people. This is because acts of worship can become habitual, be feigned, done with a dead heart, done out of custom or to please one's family or community, etc.
However, acts of worship are there for a reason, and can elevate a person; whereas leaving them aside can make them more vulnerable to wrongdoing. Perhaps, inshallah, her prayers will help her become a better person.
Being together with out any type of marriage whether permanent or temporary is sinful act. You both can recite a temporary marriage agreement if the father of the girl agrees that you be together. This temporary marriage can be recited between you with out publicity if her father does not object, and will save you both from falling in sinful acts. When you both get elder, then you can go for permanent marriage (Nikah) though you are now not too young for marriage as your parents think.