How high can yew jump until yew break yur leg?

LOL I'm trying to sneak out if my house but everyones downstairs, my only oter option is to like jump out of my window, no smaller roof, just a straight drop, idk how high it is, I'm 13yrs old and abot 101lbs, I drink milk everyday and it's the only thingi drink,I havehealthy bones ithink, so how high could I jump from?