Becoming addicted to a videogame is easy, especially when you like the characters, the environment and the situation that creators put on. This would be a question to ask to your brain: Why did you get stuck to a hero from a videogame you liked, until the point of finishing in a psychiatric consultation because it went out of hand?
Sometimes reality is not good at all, you know all the problems you can have on a single day, and you must fight them, so playing video games is a thing you do for avoiding to solve real difficulties. As you see is a paradox: you like more confronting unreal problems from a video game instead of becoming a warrior on your real life.
You are the true hero on your own life and you must fight (in the most peaceful manner) the daily difficulties. The only good thing you get when you get stuck to a hero from a video game is making millionaires the video game creators, and the worst is your health if you think you are the unreal hero, thinking for example, you can fly and you die trying to fly by jumping off a skyscraper.