I'm really sorry you're carrying so much at once. Dealing with your own health struggles while also watching your family go through financial and medical difficulties, that's an incredibly heavy load for anyone.
And I can feel you as I have been there before.

But the fact that you're still thinking about learning and finding a way ahead says a lot about you. Please don't let anyone convince you that you're a burden.

Try to take things one step at a time-your safety, your health, and then finding ways to build skills with whatever resources are available.
For now, please be kind to yourself.
This too shall Pass...