wc3edit.net

Jass is "just another coding language".
If you know other coding languages such as VB.net. You will get the hang of it (and most other coding languages really..)
I learned jass from this forum, the way you just asked. Look at my first posts they were dumb as ****. But after making my own first (terrible) cheat pack and trying to learn from JJ2197's Cheat-Pack I started to understand how jass is working. Same with anti-cheats.
Don't be afraid to ask questions here or "bother us". This is a forum and you can always ask questions here. If its a request like this one, or if you are trying to understand a piece of code (related to jass and wc3). You can always post it on this section.