I think we have heard you in the past on this very same situation. Self-testing quizzes are not for a person to self-diagnose themselves. It has been suggested also, by the members here that you seek professional help, have a psychiatric evaluation and then follow through with what options he or she gives you.
Other than that, if you refuse professional help and/or keep things from your parents, nothing is going to change, you'll just continue to dance around this going no where.
I wish you luck with this and urge you to get professional help.