As a Seeker you do not have to know to Whom you pray. I have yet to advise someone in your angst to pray for that "Whom" to show Him to them and not have Him do so... meaning, ask in prayer to be shown God.
I would caution against deciding to add anything such new information regarding various faiths and religions as you sound burned out. You really sound burned out in all relationships, and I feel for you.
Why not back off from those who drain your energy? Honor your parents but don't take on their issues and leave them be. Back away from any BF that doesn't feed your spirit.
College is difficult for everyone, and today more than 1/3 of students are depressed (even psych students) while studying in college! With that in mind realize you can do your best and probably still be ok...though of course it's a good feeling to enjoy it! (Seek out the counselor on campus for assistance.)
Are you doing anything in the way of a hobby or adventure? See if you can add something in that makes you laugh or that you can enjoy. Taking time for yourself now may very well help the rest of the relationships go better.
Prayer for you to find wisdom.