I'm 20 years old, but unfortunately am unable to move out because I'm paying tuition with no help from anyone (no scholarships, no parental help because my mom can't afford to and my dad won't pay for anything that isn't spent on himself).
I understand that better than you might think. How much more school do you have?
What angers me is that it seems the Bible is telling us to just put up with abuse like
okay, I think we need to talk about what biblical love is for a moment. Most people don't really understand what it is. The best definition I can figure out is...putting another above yourself in an act of humility creating a covenant whose intent/purpose is reconciliation/restoration. Lots of people forget the goal part of Love, they also miss the humility part of love.
Loving someone with the love of Christ is as much or more about how love changes you anything about the other person. IOW's Loving in this case, your father is more about how you react to your father than anything at all about him. Let me see, an example from my own life....one of the things my father did to me, was use a chemical on the cat that I have anaphylaxis reactions to. So this one day, he used the chemical on the cat and they were ready to force me to go to the ER for treatment so that I didn't die. My father responded by putting the chemical on the carpet and then laughing when I couldn't breath. Without love, I would turn this on myself and delve into a world of self loathing and or self pity. It becomes all about me and how I am treated. In love, that is, when I love my father, I think less about myself and so the self loathing and/or self pity is absorbed into how God sees me and turns the "pity" on my father who is being so evil that he is grieving God and those around him in ways that our human nature cannot understand. Right now, you are seeing only what is happening to you and your family, not the destruction that you father is bringing upon himself.
it doesn't happen and to be warm and affectionate with people even though they continue to hurt us,
again, this is a misconception about love. Consider Jesus using a whip to over turn the money changers, or when He called the pharisees white washed tombs or a den of vipers. Love understands the evil and is not okay with it. In fact, Love detests evil. Love does not enable the evil to continue, but rather love purposes to expose the evil for what it is and in that bring about reconciliation/restoration. I Cor. 13, the great love chapter, verse...6 love does NOT rejoice in evil. If we condone evil, if we enable evil, if we dismiss it, we are NOT loving. But be careful in this, because verse 5 tells us that love does not keep records of wrong or is easily angered, iow's like I mentioned above, Love changes us as well. We no longer are governed by the anger, hostility, record keeping that we once lived it, because in Love we are freed from all that. But at the same time, the things that grieve God grieve us, the things that anger Him anger us, etc.
Heard a story once about a man who was put in the concentration camps of Nazi Germany. He said that every night when they were left alone to sleep, they would quote scriptures to one another for encouragement. One night, they were too beaten down to remember a single scripture and so they laid there, wondering where God was. In that moment, one passage came to mind, "Jesus wept" the man said, that is when He realized that God was right there with them, weeping along with them at the evil that had befallen His once perfect world. Jesus is weeping with you and your family, in fact, I believe that every abused person needs to come to the point in which they can see Jesus weeping with them. It can be very healing.
and to forego the idea of getting justice for ourselves so other people can.
so other people can what? This sentence seems unfinished. God does tell us that vengeance is His. He also tells us that we will be "rewarded" according to what we have done. IOW's your father will not just "get away with it even if He repents on His death bed. But you also need to understand that it is not for you to judge or to punish the deeds of another, that is God's job, and it is best left to Him because He is not thinking about it through the emotional state that we come to it with. Rather, He has a measure, an exact measure by which to judge, a measure by which to punish. If this were not true, then like others here have said, you could fall prey to the exact same punishment even if your crimes seemed "minimal" to you, because emotions don't really care how badly someone hurts us, only that we have been wronged.