I believe one of the reasons behind my need to play these types of games is down to self-worth, I can have no job, no education, no social life in reality, but in the game as long as I keep playing and wasting my time eventually I'll become a high leveled player with loads of cool shit and my goal will be reached, giving me a sense of gratitude.
Agreed. And that's not limited to mmorpgs, also works for fps, rpg, etc. And all this instant gratification makes it hard to get out of once you're hooked.
enjoy playing RuneRebels more than going go college, or going for a walk around the park, but the question is should I? Is this a problem, or is this a good thing?
It's not a good thing - other than it teaching you how not to spend your time. Nothing is 100% bad, all bad experiences help you learn. I personally do not take this knowledge and apply it as much as I should so I'm the definition of a hypocrite lol.