When you have mental health challenges, it is best to keep your situation simple for less stress. Until the covid mess, where a down economy may require a lot of people to live together (and people can still have a really tiny apartment with no bedrooms), it is better to avoid putting this kind of stress on yourself. Getting along with that many people would be hard for people not challenged by mental illness. Since we are in very challenging times, it would probably be best to have a family meeting to discuss cutting down on bickering and other friction--none of you can afford not getting along. Make some house rules. Decide who is in charge of making what decisions and stick to that for everyone's benefit. There might be some rule amongst those of you who are related that you can vote to ask someone to leave if they cause too much trouble.
Hugs and good luck. Things will get better. Make goals and work towards them. Decide how you really want your life to be and make it happen. Dont be a victim.You can take free classes to get online work. Thanks, I need to follow my own advice about avoiding bickering in my family and working towards my goals that will make me happy. Hugs!