How important is it to have family in your life, even if they're toxic and treat you like worse than trash? ?

Your family sound like complete s. They're not worth the bother even if they are your family. Since your already in your own place, move as far away from them as you can but don't tell them. Change all your contact details and surround yourself with genuine Friends who will be like a new family to you. You sound like a nice person who doesn't deserve all the tick your getting. It's a shame they're doing this but don't worry too much. They sound like viscous people who get off on making you feel like dirt and as soon as your out of they're lives they won't be able too...........Good luck and really sorry for your situation :)