I have experience with this :)

I’m so accustomed to living frugally that I somewhat enjoy it just for the sake of doing it. Spending money just because I have it is stressful.

So what I did was set a monthly amount that was designated for fun. But I don’t HAVE to spend it (stressful). But if I don’t, it accumulates and grows and can only be used for fun.

Win-win, because it scratches my savings itch, and when I do want something big (or it goes on sale), the money is there and waiting. If I don’t buy the thing I want, it’s a waste of the money.

(Although, to be honest, I still have the cheap couch.)