Sounds like you have a definite passion for video games. Like you said though, this hobby can take entire days, so you won't have the time or inclination to learn/develop interest in anything else.

Trying something and then deciding you aren't interested in it isn't failing at all, it's just deciding that it isn't for you. lol, I have tried many things over the years...and most got tossed to the side eventually. Our interests and passions change, and that helps make life interesting.