Well, lately my creativity is really hitting rock bottom, i wanted to add more "fills" in my guitar work much like bands like alexisonfire does or silverstien does with their lead work but i can't seem to get any of it down. My speed and dexterity is very quick, but i can never make anything flow well, i tried learning scales but I dont know how to incorporate them into my music without making it sound like the scale.

I understand I'm probably askign something dumb, but ive been pretty much just teaching myself on guitar and dont know anything like theory or anything like that.

I was wondering what I should be learning to get on the right track??