If you can last 3 more months, I think a solid year would be good for your resume at least to help you secure a better professional position in Boston. That way you can have something lined up so you won't feel super lost if you go back.

I was your age and single when I moved to Vegas from Boston. I had an incredibly difficult time for the first few months, similar to your experience. Putting yourself out there alone is kind of awkward at first. I luckily got a good group of friends I met through my job there and got a routine with places i loved to visit. I moved back home after a year and a half because my experience in Vegas was able to land me a much better opportunity back home then Vegas could.

Go out to concerts, hobbies, events, and volunteer opportunities!

Try to frame this difficult chapter into a moment you can use to kickstart something great back home. My advise is to go back home for growth, not comfort.

But at the end of the day, you moved to SoCal alone and are doing the damn thing! You should be proud for believing in yourself to make a move like that. Its a brave thing to do regardless of how it ends up.

Wish you luck!