I'm not sure I exactly understand what you're saying, but just wanted to remind you that you have people here who care about you, that your family - despite all appearances - still cares about you at some level even though they are acting stupidly, and that there's a little girl who loves you too.
By all means, stand up for yourself. Just remember that you are still young and you are far from being defeated. This is a setback, but that's all. One step at a time.