The correct way would be: "I started scripting in 2009, but the first year I only knew the basics, like how to translate, and learned event handlers. Then I stopped scripting for 4 months. Later on, I started with the difficult functions. In the first month after getting back to scripting, I have learned isObjectInACLGroup and hasObjectPermissionTo and now I'm learning dxDrawText and XML database. I also studied setTimer, killTimer, killPed, all Event handlers, removeHandler, etc."
In addition, you don't seem to have any knowledge about Lua whatsoever. You just don't learn by functions, you learn the language itself (e.g. syntax, types) and you use its functions according to your needs.