I was pressing control and alt and shift with my pinky fingers, and that's how I blew out my arm. I switched to a Kinesis Advantage keyboard and now I have con

I was pressing control and alt and shift with my pinky fingers, and that's how I blew out my arm. I switched to a Kinesis Advantage keyboard and now I have control, alt, hyper, super, backspace, and shift under my left thumb. My right thumb has control, alt, hyper, super, enter, and space. I don't know anything about gamer keypads, is there one you suggest I investigate?