how to properly wipe?!!! I wipe my areas separately?!!

Ok so for years I've always wiped my vagina first I reach over half way like from my pee hole and wipe towards me and if I have a bowel movement I do that same half way and wipe up to my Butt crack 
So I technically wipe them Separately with two separate toilet papers 
My friend tells me she wipes front to back in one swap like one toilet paper setting!! 
Help ?!! Like what do you have to like bend ur knees to do that I'm a big girl so that seems hard