Do you think that I should change my sn that I've had for like 8 years?

Haha! I have the same issue. My username is like: prozacdouk13. It's really awkward xD and hard to explain. If you really want to change yours, go for it. I haven't changed mine because it has so much history to it. Everyone knows it, it's me. No matter how awkward, lame, and embaring it is.