Yesterday i tried a one arm chin up with my right hand on the bar and my left hand on my right arm. I managed to do 4. Today i tried the same with the left hand and i can't do one. How can this happen? I can do around 12 pull ups overall. How can my left arm be so weaker? Or is this probably a form problem? Sometimes when i'm front squatting i lean more on my left leg. I think my hips aren't really aligned. Any good exercises i can fix this? Thanks in advance!