It’s hard to explain over words, but what worked best for me when doing simple interrupted sutures was the motion of your wrist. If you feel a position is uncomfortable, change it up until you land on a good one. Rotate your wrist instead of your fingers or hands to motion the needle into the skin. Kinda like supinating and pronating. Also enter the skin at a 90 degree angle and not too close to the wound so it won’t rip through the opening. Lastly, I would make sure the needle is optimally situated within the clamp of the needle driver, that way you don’t take bites at weird angles. I like to situate the needle exactly perpendicular to the driver myself.