Stop pouting, get out of bed, go for a hike, get your endorphins/adrenaline going or go do something you like with people you like. DO NOT continue to make poor choices and make the situation worse.
Also, absolutely do not put anything into your body that can kill you with a small dose.
And I do realize that some people are way screwed up from issues that are not their fault and those people will have more trouble than most breaking out of the cycle
I can understand where you get that thought from, and partially my life turned around because of this. BUT and it's a very big but, imagine you are you, and suddenly all of those things that get you moving, your endorphins up, your heart racing, and your drive back, suddenly dull. Imagine that while you're madly in love with this woman, it's muted. Your car time of wrenching in the garage feels familiar and calming, but somehow remote and distant. You walk away from doing all of those things you listed feeling unfulfilled because they didn't quench that thirst of completion you need to not feel depressed.
It's a battle, and it's not won by simply "stop pouting". You clearly have never suffered from major depression issues.