Forget computers and engineering interviews, start looking for any and all work that pays. If all else fails, go to McDonald’s and work there until you save up a little. Once you have an income restart your job search.
If you go homeless that becomes a social stigma that’s hard to come back from, so do EVERYTHING in your power to avoid that.
Oh, and find an apartment you can afford.
If you want someone to talk to, you can give me a call (send message first to morgan@wilde.work).