Cheerleading/tumbling.?

Okay, so i am trying to get my split, if you can do your split then please reply, id be a lot of help. okay so i am doing my split and i almost got it my knee just bends a little & turns but does these feelings mean i almost got it ..... the leg thats in the front, the back of that knee hurts & the uhmm how do i say this the bones or the part of my legs by my private area hurt haha. i forgot whats that called but does that mean i am getting my split? & how long do oyu think till im going to get it from what i have toold you