You can't become "Pro" just like that. The simple game creators are what help people if they DON'T know how to code (They do let you code though). If you want to be Pro you need to learn a coding language. (If you already did you're better than Unn. xD!!)
I ALREADY KNOW HOW TO CODE!!!!!!!!!!!!!!!
Please with the caps. You said that quote
"ive been working with simple game creators" That means that is with an application that makes game creating easier.
Paul uses Java (as he said) and so do i. I have been learning it for about 4-5 months, and got started actually doing the code from memory and no help about last week (coding about 2 months).
You say you know how to code? What language do you use? give me an example?
If you want to learn java, find a simple tutorial on youtube and take notes and watch it a couple times.
Have not tried coding but my teacher says im definitely ready for unity (top of the class) he says its nearly the same thing just typing everything