Rascal77s wrote:
(...)
I've been typing for 20 years and I've just recently managed to start typing with 4 fingers and a thumb for space

Touch-typing? I had to learn it in high-school (in secondary school, to be exact). I wasn't good at it, but unlike most students, I decided to retain this ability by practicing. So for me it's more finding the right words that makes typing difficult.