I've grown up in a strict household too, and I always felt the need to hide things from my parents, so I know how that can be. I'd say therapy would be a really good option right now. Or maybe get a friend involved who will be there to support you. Talking to a social worker probably won't hurt either. Just figure out who's there for you and rely on them. You may have made some mistakes, but what's important right now is recovering from that and bettering yourself as a person.