I recommend fiddling with stuff, making small maps, etc.
If you have a programming background, JASS should be easy. Just extract the common.j and blizzard.j files, and learn the syntax from looking at a few people's triggers.
firstly open WE or even better DL WE unlimited and check the stuff in it see what you can do and what you cant do using it if you dont understand something read here in the forum and for more functions to the editor you must use JASS indeed as capitan griffen wrote
