I hate this effing cult. Combined with fanatic parents, this cult leaves almost no options to the most vulnerable.
You need support. The sooner, the better. Talk to adults that you come into contact. There has to be someone out there that can direct you to the right place. in the meantime, get ready to land a job as soon as possible. It can be a good therapy and a source of income at the same time it is an opportunity to network with more normal people. The most important thing is that you get the best secular education possible, but you may have to postpone it until you have dealt with your emotional stability and your financial self sufficiency.