What effective ways have you seen for a person to break out of messed up mindsets?

Many people end up getting stuck in pretty messed-up mindsets and ways of living, such as compulsive gambling, crime, or even just very unsatisfying career paths, and/or depression. Many never get out of it, but some do.

Have you ever seen someone else (or have you yourself managed to) get out of self absorbed deluded funks where they feel sorry for themselves and like the world doesn’t get them, while also self-destructively undermining themselves, sabotaging relationships, burning bridges, and not doing anything that even satisfies or serves their own real interests?

What paths have you seen?

I’ve seen a few, which I’ll mention as answers.