[quote=Charlie]
He's Robin during Teen Titans but I figure this after he leaves them, joins Batman for a year, gets shot and leaves batman and starts at the end of the history i put there with Superman telling him about Young Justice. (I don't know much about the DC universe, I'm a Marvel kid.)*Edit: He could be a watchful protector of Young Justice, A hero they need, but not the one they want.(Just wanted a dark knight reference in there.)
[/quote]

No, the Teen Titans Universe is a different one from the Young Justice Universe. As shown by: Beast Boy being in Young Justice, but not Raven or Starfire, and Cyborg(if i remember correctly) is shown once. Neither even mentions Titan Towers or even knows Dick, however, there a GIANT time between Season 1 & Season 2, during which Robin becomes Nightwing, and during Season 2's Beginning we meet Garfield Logan(Beast Boy). So arguing that Teen Titans was between Season 1 & Season 2 is possible, since Robin in Teen Titans is very much a Team Leader, a skill which he learns during Season 1.
So the Timeline Could Be:

Young Justice Season 1
Teen Titans/(I'm Sorry)Teen Titans GO!
Young Justice Season 2