Advice for a teenager

My 18th birthday was today and I'm sad.In late January I had finally accepted the fact that I'm bisexual, and since then I've slowly been coming out to siblings, counselors, and a few friends. I'm having a predicament now.I live in Illinois and I'm fortunate enough to live in a pretty accepting area. Everyone that I've come out to so far has been accepting, loving, and kind. In the fall I'm moving to Northern California for college. All in all, I'm very blessed.But recently, I've been struggling with how to tell my parents. i know that they'll accept it (after a little time) and I know that I'm in a much better position than some of my friends struggling with the same issue. But I just can't do it. I'm not sure why. My relationship with my dad is kinda distant, and I know he'd be disappointed. My mom would probably be fine with it eventually, but I know she'd be a little upset too. They're both fairly religious.I'm just in a very awkward place, and struggling with outwardly communicating it. I have a giant crush on this guy, and he doesn't like guys (Obviously not upset with him or gonna do anything that disrespects him, but it hurts. Kinda like when you like a girl and she doesn't like you back. Makes you ask "what's wrong with me?")Any advice on any of the above? <3TL;DR - Can't come out to parents and stuck in awkward end of high school/beginning of college situations HELP