How do you go from constantly gaming to not gaming at all?

For a few months now, I have tried to go cold turkey on gaming but it never works out. Even though I go to the gym and write (I want to be a novelist), the fact that those are long-term goals means that on a day-by-day basis, my brain looks for ways to acquire short-term dopamine. It takes a long time to build a good physique and it doesn't help when you have to deal with health problems so you're constantly in a cycle of weight and muscle gain/loss.

It was only recently that I started to realize I was more addicted to dopamine than games. For context, even when I tried moderation, I would play 2 or 3 games like World of Warcraft and Elder Scrolls Online. However, now I am at the point where I am keeping up with 12-15 live service games. I have a note on my Apple Notes where I keep track of when battle passes end and when a new patch for a game is releasing. I almost blink and miss how I went from moderating with 1 game to keeping up with a dozen.

TL;DR How do you manage gaming cravings on a day-by-day basis outside of work when your brain is hellbent on searching for short-term, addictive dopamine?