as salam alaikum
the purpose of istikharah is not to tell what will happen in the future but to indicate the best course of actions to be undertaken by the believer who put his trust in Allah.
One of the underlying notions in the Du'a Istikharah of Imam Zayn al-'Abidin, peace be upon him, is that the servant should be pleased with what Allah has decreed for him. In it there is a huge wisdom that the servant may realize later on, or even after his lifetime.
It is important however to consider istikharah as a du'a and a request to Allah, not a prediction of future events.
With prayers for your success.