What do you think about these disagreements with my mom?

You live in an apartment, that's why she gets mad at you. Your wasting her light bill, when she could save her money for something better instead of paying too much rent. As for church, I can' t really say much, but she probably wants you out of the house so that you will not try anything funny. You live in her house and don't pay the bills, so you have to respect her choices.