Guild Wars 2

I want to make a character that stops doing the personal story after grabbing the reward for completing the tutorial. Then level the character for a while, only resuming the story when my level is high enough that the xp I gain from doing the story will keep my level at least high enough for the next story mission.

What level should the character be at before resuming my story ?

mid 70s should be good but you will want to have explored all of orr since you go all over the place and having those waypoints makes it easy, unless you want to run and explore it with the story

Yeah 75 or so should allow you to do the whole thing in one run if you want to do it that way.