Are you sure your parents feel how you fear they feel? I would assume your parents would welcome an open, honest conversation with you about your life’s direction.
You ‘realize you are venting and writing too much’. Why are you minimizing yourself? You are just as important as anyone else and deserve to vent and write as much as you want, heck, the posts are free! You don’t even have to ‘repay’ anyone. We are all trying to help because we want to, because we like and care about you.