the problem is when i tighten the screw on the left break pad the pad *edges away* from the wheel and is then at a angle and the front of the pad is not touching only the back. the right break pad dont do that it just stays in the middle straight and both edges touch.

how is a rubberband gonna make it not edge away? sorry if im being mean or anything but im really confused by this and i have no idea about bikes. i will try sanding it down