I need tips on saving money instead of spending it

Hi, everyone. I'm not sure where to post this so I figured this may be a place to start.

I believe I have a shopping addiction, which I'm trying to stop. I want to get advice for how to stop my spending habits and save in case of emergencies.

A couple of things:

1. I like to by art commissions,(which, if you don't know, is when somebody draws my character for me for money), which is a few times a month.
2. I like to impulsively spend.
3. I tend to run out of money fairly quickly after getting paid.

I want advice on how to curb this behavior. I understand it's not something that can be fixed right away, but I want a few tips on what helped people not spend their money. I have considered making a spending list, but are there any other things I can do?