Work overestimulated

I starting a new job as a tailor for a shop 2 months ago, before that I mostly just stay at home and do ramdom stuffs. I think Ive worked really hard eventhough my performance at work is some kind of bad. I work directly for my boss, have a coworker and a seller, both joined after me. I work an average of 80 hours per week, include pics modeling for the shop. The boss quite fond of me as a person, but not much as an employee tho. I make only minimum wages (exploited by capitalism in so many levels) and feel tired everyday after work. My boss is doing everything she thought she can so I am not really blaming her for how it turn out. But still, I work as a dog with no extra money or time for my own. I also live alone, not close with family, have no friend (not a single one i swear), meet up with my bf every 1 to 2 week (we only text or call if needed cause he said he doesnt have anything to say to me). I feel evry alome and vulnerable all the time cause I feel lile no one need my company except for my boss (she needs me to work for her untill I die). Every night I thought to myself that I just want to stay at home like before cause the job is very demanding but the salary is too low that I can not even support my barely-living-style.

Really need someone available enough to chat at night i mean my night gmt+7