Have I lost $20.5k to my mom and step dad.

Im 19F. Dads dead. The owe me upfront 2.5K and they have for months. the other 18k is the one i’m unsure of but still pissed off at. Since my dad is dead i’m supposed to get 2k a month, but it goes to my mom sense she is my legal guardian. I lived alone for 9 months while I was 17. They got 18 grand off of my social security checks. And i was completely finically independent. they didn’t pay my bills rent food nothing. My friends are telling me my parents are in the wrong since the SS checks were addressed to me. my mom called them pretending to be me just so she would get it. But I just don’t know anymore im so frustrated and tired. I had to move back in because of the 2.5k they borrowed from me. I’m a full time college student and I work 5/7 days of the week. Do i confront them? I know im not getting it back lmfao but like I just don’t know what to do I just wanna cry.

They also love to play victim anytime I try to bring ip stuff they did to make me upset (got my step dad a job at the company i work, he showed his ass to MY boss after I got him the job) and they take it so fucking personally it’s like trying to talk to toddlers “oh i guess im just everyone’s bad guy everyone hates me” like no I don’t fucking hate you I care for you but you’ve given me every right to be disappointed.