Just remember my friend.
God brings all things for a reason.
Everything you have experienced is for a reason.
Think carefully about what things have stood out to you the most. The things you have experienced in this time, what themes are the most important. What is god saying to you?
You've been given a gift. It might not be easy to deal with, but it will mould your character so strongly. It will make you far stronger. I don't know what the right decision will be for you. Perhaps your indecision abut the art institute is something that is meant to keep you from going there and to be ready for something else that will become available to you? On the other hand, the indecision you are feeling could be a test of your convictions?
Only you can know because only you can see the signs that god has left for you.