Most of the people helping the homeless are barely housed themselves. There are many who are in a worse position than you. Some people can’t walk or access the internet. Some people have money but can’t grocery shop. Check out the is guy he has found that it’s very easy to help others, you just have to listen and nod:
I’ve been depressed too. Cardio exercise is an easy, but temporary way to feel better. Helping people is the easiest way to feel valued. Help an old person use a computer. It doesn’t have to be difficult.
Anyway, hope you find something to put your energy into.
It’s probably not possible at this point. If there was some kind of revolution, poor people could have access to healthcare, education, shelter, and food. You know, basic dignity and hope for a better future. But the problem is that hopeless wage slaves are better for capitalism.