Moved back home recently to another state and started working a serving job. Just this weekend I made 550$ and I'm wanting to put it towards being healthy and fit.

I've made good strides this year towards being the man I want to be but I've also had a lot of set backs. I've been struggling to commit 100%

What can I buy that will really help me towards bettering myself? Part of me wants to upgrade my PC to game but I said fuck that, that's going to make things worse.

Any advice is appreciated.