Gerald Senarclens de Grancy
When you finally understand what you are doing, things will go right.
You've learned how to
We've also (briefly) discussed
As a programmer you must acquire the habit of seeking out new information [...] "Look it up" is a perfectly reasonable answer to many problems, and as your skills grow and mature, it will more and more often be the answer.
If in doubt, check, experiment! Don't just despair and don't just read the documentation.