How can I get out this mess

[beigeballoon]

I have an extremely controlling dh. No friends or family. One dc aged 11.
dh sold our house years ago and I know there’s some equity left. He has refused to buy another one. I can’t buy one myself as I don’t work and he has forced me to stay home or at least did everything he could to ensure I couldn’t work. He’s also wracked up massive debts and I don’t know if this affects me too.
I haven’t had any money of my own for over a decade. I cannot just go to a shop and buy something I want.

im so worn down and depressed I don’t know how to get any sort of life back.

This is coercive control and financial abuse, which is illegal. Perhaps contact Women's Aid and ask for their advice.

Please contact women's aid. You are in a precarious position but they can advise you on options.
I wouldn't worry about money right now, just focus on getting out safely.