I probably wouldn't, to be honest.
Three things are more than enough, but it'd be at different times. And if I could only go back (you said nothing of multiple jumps), then I wouldn't even find it worth it.
And honestly, I try and turn negative experiences into positive, so if I prevented them, who's to say I would have a lot of the opportunities that stemmed from them now?
So, overall, I'd have to pass on the chance. Is that an option too?