I lived in a 3 pyeong (about 100 sq ft) space for three years (I wasn't homeless, so I had it better than you). Still, I'm grateful that now I have a small 8 pyeong (about 260 sq ft) space. Thank you for sharing your experiences and emotions.
I want to succeed through willpower, just like you. As you know, most of my coding is done better by AI. Unless it's large scale programming, the work that comes to people like us is usually small scale, handled at the level of specific frameworks.
Nevertheless, I still believe there is a place for me somewhere (though that might be self hypnosis).
Thanks for the comment