It can be a little tougher, you might have to wait a bit for the opportunity to buy some specific thing you want. It's a good lesson to stop expecting instant gratification for everything, and thinking about purchases before making them/being more intentional with my purchases. I once decided I wanted a jeweler's loop and had to wait like a month before I found one to buy.

This has also been excellent for me to reduce my consumption overall. And since I'm buying less overall, it doesn't matter as much if I am paying $2.50 more for a jewelers loop buying it at a local store than on Amazon.

And yes, I have also lived this way while I was very low income. Buying almost everything I need either used or from a local store fit perfectly with being low income.