Other than what is already covered, somethings that I want every beginner to know:

- Writing some comments (somewhat pseudo code) before writing the actual code within the code file is useful.

- Do not get obsessed with writing working code at the first try. This happens a lot to beginners. They write one (or half) a statement of code, save the file, and build/refresh to see if it is working, then repeat. Please do not do this. Write code, and you can debug/fix typos later. It also builds up your confidence.

- Not reading the errors in the console is a big big big mistake. Please read the console/error-log/whatever, instead of plainly looking at the code dumbfound, thinking wtf is wrong with it. (This does not make you write code faster, but in debugging faster).

Good luck ;)