Can I work 2 jobs and still have a life

As it stands now I don’t make enough with my job base level, I come out with 1500 a month and with the way prices are coming I don’t even have enough cash to move out into the shittiest of apartments, but I also value my personal life so much as obviously without it pretty much everything would crumble. My girlfriend and my grandparents are my world growing up without my actual parents and I make time for them as much as possible but I need the money. Would it be lucrative to work another job and pick up shifts every now and then? I need to bring in at least another grand to live comfortably but minimally another 500. I’d ask for more hours where I work but as it stands they’re already cutting down on any overtime.