A video can be good to watch just to get the thought process going. but nothing will help you doing it unless you know how. I tryed out "The core" Hotkeys once. and that arcade map is so great to just sit and spam for 10-20 minutes. Everything you need to know is there. ups. buildings, everything. There is one from WOL that is so much better. but HoTs is not in there. So it will have to do for now :) Hope you learn from it!