Sell your car.
Look at it like this:
Car, Expense
Food, Expense
Rent, Expense
Boxing/Training, Expense
Drugs, Expense
Friends/Entertainment, Expense
Internet/Phone, Expense
Debts, Expense
No Job, No Income
No Savings.
Your expenses > your income.
Your first and ONLY priority is your Income. Commit to that.
Idk if you get paid weekly or bi-weekly in the UK or if it depends on which job you get.
But your next priority is food. Food to fuel you for work. Buy bread, peanut butter, oatmeal, stuff to make fried rice. The basics. This part is hard for me too, I love the good eats.
Quit drugs, start your detox now. Only self discipline will save you. It will take the next few years of your life to get you out of this and you won't succeed unless you change your attitude and sacrifice the unnecessary. Humility is the only thing that will save you.
Welcome to the GRIND.