IMO the mainstream "just start editing stuff" advice is not very helpful. Torque script is a coding language that you have to learn. Similarly, you cannot just start reading and writing Spanish when you only know English. Take classes and read books at the beginner level - for people with no programming experience. You will learn all the basics such as functions, variables, if/else statements, for/while loops, etc. Then, when you do want to edit an add-on, you will have at least some measure of familiarity and guidance.