I'm the same with vacuum cleaners. Don't ask how many I've had in my adult life. The best bit is I don't do any more housework than I absolutely have to. They just don't like me. Have you tried a trackball? A bit dearer but they seem to be more resilient (and they don't get the wrists so much either, or need as much space to move them as a mouse as you don't move the item, just the ball on top).