A more helpfull answer:
Like anything, you have to put time and effort into your coding.
Arnold Swarblehblehbigbloke didnt become a strong chap over night.
Look at the commands. Read the tutorials. The most important thing to grasp is the structure of coding and how things fit together.
Write a VERY simple game. for example just moving a cube around the screen and build up from there.
Wrtie 4 or 5 small game before you try and take on something substantial. If you go for a big game straight away you will come un stuck.
I've had 3 games published commercially and on the shelves - but i wrote 5 full games before i attempted to get signed up for my first one.
Good luck
PS - biggest tip is - have fun
Regards,
Dave Milton
Check out my games: Diode, Root, Binman & Skateboard Crazy