Can't figure out my stance

So recently my coach has made a kickboxing class at our gym ,and for the life of me I can't figure out my stance because my power hand is my right, so I should keep it back but that's where the problem hits because my power leg is my left one so of I keep my right hand back I don't have kicking power and if I keep my leg back I dont have punching power like trying to kick whit my right leg fells very bad maybe because of my lack of technique but also I can't even aim it I want to kick in the middle of the leg and I either end up up high or down low , so any idea on what should I do?