No. Just as it is not appropriate for me, as a Muslim, to tell others (such as Christians or Buddhists) how to practice their faith, it is not appropriate for someone who is not a Muslim to tell me how to practice my faith.
(It is fine to listen to people's ideas but they should be taken as suggestions or observations, not commands)
Self-definition is a fundamental right of human beings and part of human dignity. When a person (or group) gives that up, they are demeaning themselves.
This is apart from the fact that the main message of the Qur'an is one should obey Allah and the Prophet (S) as primary sources.
Of course, if there is some legal or practical reason why one is under the authority of someone else (imprisonment, political oppression, laws enforced by police, etc), sometimes there is no choice but to do what one is told to do. However that is not internal obedience; rather that is simply being forced to do something due to circumstances.
As you know Islam encourages a positive and healthy spiritual and moral lifestyle, where one of the most important elements of life is building a relationship with our Creator, Almighty God. This can be done by offering a minimum of a few minutes a day and devoting it to praying to the Almighty.
What God wants from us is not that much, and all the benefit will come back to us.
Avoiding sin is one side of religion, and indeed an important side, but so is participation. A Muslim must try to practice as much of Islam as possible, furthering his or her spiritual progress.
Change will occur when you put your mind to feeling God in your practical life. When you surround yourself with Allah ta'ala, you will automatically turn to following His commands. You will feel an inner strength, and this will make your go through the transform that you need.
Living an Islamic lifestyle will give you the enlightenment that you need as a human being, and it will fulfill your purpose in this dunya.
I would encourage you to read books on Islamic Akhlaq, like certain books written by the late Shaheed Ayatullah Dastghayb.