What do you need to buy?

What are necessary recurring expenses?

Food
Rent/Housing/Utilities
Clothes
Transportation

Entertainment/Creative output

Most everything is not worth it. Of course there are things like insurance, health insurance, and taxes that need to be paid.

What are expenses that you can make fixed?

Health - Whatever you need to do for your health. You can get home workout equipment or you can wokr out for free.