I also have parents that are rather...well, I'm not quite sure if it's abusive, but they are very verbally harsh
. They expect a lot out of me as well. If you can't get a job in retail or a restaurant, etc., I have a suggestion for you. If you play any sports, or have ever played any enough to know some fundamental rules of play, try finding a local sports club and certifying yourself as a referee. Go for the oldest players you are allowed to/feel comfortable to referee. I referee my soccer league, and it pays very well. However, be warned: Individual games do indeed pay well, but you'll only be able to make enough money to support yourself if you referee at least a few games everyday, maybe more, maybe less, depending on how much it pays. I get paid $25 just for being an assistant referee at middle schoolers' games. I referee those for fun on the weekends, when I have spare time outside of schoolwork. Once I'm old enough to move out, I wouldn't be able to support myself just by refereeing a few games over the weekend.
It sounds like you're older than me, but my parents expect some similar things out of me. They also don't believe in depression, so they don't know about mine. All I can say is the same thing as everyone else. I have not taken meds because I haven't been taken to a counselor/therapist. I have done a little research though, and falling off your meds does reset everything. You need to make sure you never run out of them. Next time, try to go out and buy them before you run out. Make sure to remind yourself to get more meds when the bottle is about 1/4 full.
As for your mother, I do suggest getting out of the house. The relationship will most likely get better when you don't need to see each other everyday. Keep working at getting your job, re-apply as many times as you can for jobs, keep looking for new ones. Once you get enough money to take care of yourself, you can move out and live on your own without the poison ivy living with your mother.
Another way to make money is to enter competitions in things you're passionate about and good at. Art competitions, for example. Enter competitions with cash/check prizes, something of the nature that could help you start to live on your own.
I sincerely hope your situation gets better soon, good luck!