Man, I've seen a few of your posts now and I really think you need to get out of your toxic environment at home. It is a noble thing if you want to help your family, but you aren't helping anybody if you become so bitter and depressed that you eventually decide to rope or perma-ldar. Look for your own apartment, or even much better than that, look for a shared apartment with a nice flatmate, one of the best ways to find friends if you are isolated.
I also recommend you to go to some kind of club (for example sports club, choir or ensemble if you like music, dancing club, some charitable community or anything else, there is usually a big variety of such things) to meet people. If you live in a town with a uni, try to go to one of the clubs associated with the uni, the big advantage is most of the other people are going to be your age. If there is nothing that interests you at first, just try out different things, maybe you'll find something you enjoy. If you don't find anything else, you also might consider going to a christian community, usually there ae nice people there. Another possibilty is to look for groups on facebook named something like "new in [city name here]" where people post events and try to get to know new people. Another OP here also recommended www.meetup.com.
I don't know how easy it would be for you to find a new job, but moving to another city also can give you energy and motivation to start over your life.
And finally, if the loneliness and depression becomes unbearable, or your baggage keeps tearing you down, try therapy. There are some things that you can't fix on your own.
Hope you found some of that useful, whatever you decide to do, I wish you success because I have the impression that you haven't completely given up yet and that you are one of the more nt people here that has just been fucked over by life.
