Forced religion is normal because your family does it believing it will save your soul, you can decide later if you truly believe of not. Im very sorry your mom is so unstable with guys. Unfortunately relationship these days are hard as you can see yourself with th girl you like. Better people will come by, stop liking her it will bring you more pain than joy. Just keep a smile on your face, as you change classes you will meet new people and hopefully new friends. Stay strong buddy.