It won't be a cake walk. Learning programming on here or anywhere is like learning any craft. I highly recommend learning to program be it here or anywhere else as its a really fulfilling experience to complete a project and has a lot of useful benefits.
"This isn't a game" disclaimers out of the way though the manual (found on the home screen or on the website) is a great place to start.
heres a starter to make your own game look at somebody elses game start out on smilebasic's website and find programs there or use miiverse or smilebasicsource.com or look at the included sample programs
(Even if you don't make programs you can still play other people's projects so it's not completely useless if you can't figure it out.) just know that if you get this you will basically need to study to get good at it ;)
Heck, when I started programming I never knew how fun it was; the fact that it can be used as a fun alternative to math really surprised me. A lot of math concepts can be found in programming, such as variables, functions, and loops (for loops are really similar to sigma notation).
Programming could be understood as a new language. Just understand it as much as you can.
@sam I believe its a myth to say you need to be good at math to program. Whats far more important is the ability to understand logic and the ability to proberly and accuratly troubleshoot. Knowing how to stick to a syntax is also important and maybe a bit about computer.
Sometimes depending on the project knowing math is important but its not a requirement.