How do I cope with the difficulties of life?

Im having a hard time with coming into my own... i've dealt with depression and anxiety for most of my life now its mostly anxiety.. I've been feeling so great lately but its hard to feel good when people seem to want you to feel bad. I've started working a fairly stressful job... Im sometimes unable to eat due to nausea due to anxiety. I can't stop thinking about anything ever... I threw up my dinner last night at the bus stop on my way to work.. I dry heave a lot. im trying hard to be an adult I have a steady job now after quitting my last job and being unemployed for 5 months... I found someone I care about now and the only thing I hear is "this won't work". The stress from having to carry a friend at work is killing me. My stomach burns and im exhausted every day I work from having to do his part and mine. I don't get how to do it. So many people patch together all these crazy pieces and live just fine... they have friends, gf/bf or spouse, jobs, and still do a lot. They usually don't seem to have a problem with it. I however am having extreme difficulties.. the negativity has me feeling very depressed. I keep my job because its what adults do I guess... but it just feels like crap. I also keep it because im saving money to travel abroad which again when I think of only depressed me at the daunting road ahead.