With over 1000+ hours in SC1, 2000+ hours in SC2, and 500+ hours in osu, I think I know the flavours of addiction. I played Starcraft 1 and Starcraft 2 all the time for about a year and two years respectively, quitting mostly just before I went into Uni. Also was addicted to osu in streaks. Now I'm more sensitive to whether or not I'm actually enjoying the game, and I can put in perspective the gratification I'm getting from it.
Also, about MMorpg's, when I came back and tried MMOrpg's I was suprised at how weak the player to player interaction is by default. Couldn't stand it.
Glad you realized that. From someone who's gone through this... don't be too hard on yourself if it takes time to get off the game. It's still an activity that you are very used to. Especially for people who have used games as a diversion from real world tasks, important to recognize that failing in real world stuff (like trying to do X, and failing) isn't the end of the world, nor something to be afraid of, you just have to learn from it and try again. RL stuff relies on strategy and skill, and takes time to figure out, just like games.