Building on what Seeker said:
Most importantly, start small. As odd as it is saying that here.
What I mean is. Progress is not a binary. You know what you’re dealing with. If it was as easy as flipping a switch, you would have already done it by now. Growth in this way only happens through steady, consistent habit forming decisions. So. Start small.
Don’t set out any grand goals. Don’t tell yourself you’re not gonna get over this. You will treat this the same way you treat a diet. Again. Weird given the context, but here we are. Pick one task. Just one that you feel comfortable with getting done. Something so insignificant that you don’t even think it’s worth making a goal. And when that becomes a habit.
Start with the next.
And the next one after that.
While you’re at it, if you need to, reach out to someone you think can hold you accountable. A good friend, a parent or a coworker you’re on good terms with. Doing that will make it real for you.
And as you’re doing this. Don’t make it the entire focus of your life. You start out with any grand ambitions, and you’re gonna burn out, wonder why you even bothered and then come back in a month or a year, and try the same thing. In that same vein:
Pick any one thing you like doing, and make that a consistent thing too. Maybe you have a video game you love coming back to, or a favorite book series you read nestled up in your blankets. Maybe you have a special hiking trail you’ve always wanted to come back to. Treat yourself to something small, and manageable. And then? Just live!
If you find yourself in a weird position, after a couple of months of this - you’ve hit a wall, or you don’t know what to do next, that’s fine! Get on a forum like this one, or find a friend, a coworker, a therapist - hell your fucking pet dog lilyfufu smiithington lady baroness of dogshire. Just someone or some thing that can help you touch base.
Most importantly, look at the factors that got you to this point. Did you maybe not have a job you liked? Were you afraid of failing grades as a kid, so you just - didn’t try, so you’d have the excuse? These aren’t accusations, and you should never look at them that way when you’re asking these questions, but you should - in moments of reflection like this one, find a baseline to begin your work from.
And with all that said. Have a go at it.