I don't know code. D:
This is how to make your character move right:
Inside Draw event:
x =+ 5;
This is how to make him move right forever:
Inside Create Actor event:
xvelocity = 5;
This is how you make him go to the mouse:
Inside Draw event:
x = xmouse
y = ymouse
The simple things are mostly one or two lines of code.
The entire language itself isn't that hard to learn either, and you don't even need to learn the entire language to make something awesome, as the events pretty much do half of it for you.