I can touch typing but I only used 6 fingers and a lot more on 4 fingers. That puts a lotof load on my fingers and I'm in process of trying to type with 10 fing

I can touch typing but I only used 6 fingers and a lot more on 4 fingers. That puts a lotof load on my fingers and I'm in process of trying to type with 10 fingers. Will this help me? For some background, I train myself to be left handed as in I started to use mouse by left hand, writing on left hand to help my right hand recover. But nows it's my fingers