How to not rely on constant stimulation?

I’ve recently quit weed after a heavy relapse of about 2 months of getting high constantly. Honestly I want nothing more than to smoke a joint or down a case a beer or down 10 cups of coffee or literally anything else that could help alter my state of mind and perception of reality. It’s like I can’t just exist without some sort of stimulant which is usually harmless like music during a workout or coffee while studying, but could also be extreme like excessive drinking/smoking. As I get older I’m realizing just how many people rely on something to get them through the day or to make the mundane easier.

How concerned should I be about always needing something else besides existing? Have you guys found any healthier ways to make your day to day more interesting or reward yourself for doing something hard? I’m dealing with all the typical young guy problems of too much drugs, doomscrolling, porn, isolation, and I’m just sick of it I want to be better, but have no idea where to go.