How would I go about finding and holding the trusts/accounts that are in my name?

Location: Israel, America, Spain

Hi, I am in a tricky situation right now. I am 22 and still dependent on my parents because I have autism and need some aids (but I am pretty low support). However, living with my parents has been very very harmful to me and now I am staying in a therapeutic program to help me transition to independence and heal from my life of trauma. The issue is that me "getting better" to my parents is to look "normal" and be a girl again and lose weight (im ftm, identified that way for almost a decade atp and im also fat and cant seem to lose weight) and I think nothing will ever change and I'll never be happy living under my parents.

Our primary bank accounts are in the USA and I am a US citizen and also have Austrian citizenship. I know I have thousands to hundreds of thousands of dollars put away for me in bank accounts and trusts i vaugely know exist but my parents still need my legal authorization to make any deposits. Another issue is that my parents have access to my bank account too. They are incredibly overbearing and controlling and give me no real autonomy and privacy

the reason why I gave those 3 locations is because they are making go to school in israel and right now i am in spain but i am a citizen and have my finaces in america.

i dont have any money to spend on a lawyer and i have no idea where to even start