Hello and welcome to PC.

My first suggestion is that if you live in the US you check and see if you would qualify for Medicaid. I don't know if you would given you live with family, but you should check. In my state you may qualify but as a single person you would have to be looking for a job but they provide assistance with that. If you do that would cover your mental health treatments so you could see a therapist and a psychiatrist. It would also cover any physical health treatments. It sounds like your parents are already worried about you given that they took you to see the psychologist. You should talk to them about getting more help. You can't know if they would be able to pay for treatment for you unless you ask.