How do some people lvl SO FAST?

Skipping content eh... never tried that, I often find myself going back through maps i've already been and killing the same monsters even though I'm 4-5 lvls higher, I have that "MUST KILL ALL" kinda mindset lol

Gonna put some of these tips to use, thx for posting! :)

I usually clear almost everything as well, But if you want to get to endgame fast, or win a race, you skip content that isn't all that beneficial to you.