i learned everything i know now by just using Help -> Search...
I started by writing a bot thats still in use 2 years later and as i needed to add new features i used the help file to find out how to do it.
Perhaps not the best way of learning how to script as i only knew bits that were involved in my bot. After 2 years i still havn't mastered hash tables, @ windows, picture windows, binary files and regex as i havn't used them in my bot.