Colouring on Illustrator

I didn't have my original drawing of Ray saved onto my USB (which i was sure i did) So I ended up doing a really quick line work to start colouring.
Which by that point I couldn't remember how on earth to do use the fill. So I have been using the pen tool fill for it all, i can safely say it sucks.

I really don't like Illustrator, it's way to complicated to do the simplest of things.

Other than these tutorial lessons things, there's no way I'm using illustrator.

sticking to photoshop