Get this, I had to upload the song, "The Last Mission" three freaking times in order for it to sound really good, here's why:
the first time I uploaded it, It had no bass, so that was some messed up shit. (I had the rhythm though) then I re-uploaded it, but one part of the song sounded really wrong, then finally I reuploaded it again, and it sounds a hell lot better than the first. You know what they say: Third time's the charm!
Tell me if you had to do the exact same thing on some of your songs. Isn't it true that just when you thought you uploaded what you did, then you had to make a few tweaks in order for it to sound exactly the way you want it? :P