You don't need hundred of commands to use vim, have you at least finished vimtutor? Finish it in the way it proposes, then start it again and think on your own, what commands for more effective passing the problems from vimtutor might have been there as well.

Letters w and b may be located wherever they are located, if you can not touchtype vim is not for you for the same reason we do not learn how to run before we master how to walk.