I was also homeless a while back, but I was able to pick myself back up due to the existing support systems for the homeless, both public and private in the US. I eventually landed a job as a developer by the numbers ie I sent out tons of tailored CV’s and cover letters to virtually every job listing. Unlike you, I didn’t even have a degree back then. Just keep trying Jack. Luck favors the bold and persistent. Having a portfolio of projects also helps a lot