Ok, so two things to remember with powers is that, like I already mentioned, your character will become more powerful over time. They're young. As they use their abilities and mature they will become stronger. Second thing to remember is when you suddenly start showing powers [i]you don't know what your power is[/i]. The things didn't come with instructions or a guide book ya know?

So as an example I have a character in the book that can control gravity. When his powers first manifest he wakes up to find he's floating three feet in the air above his bed. At first he thinks he can fly. Then he later thinks he has telekenises. It takes a little while before they narrow it down to controlling gravity. 

Another character has a power known as creation. Literally a God-like power. Anything he wants, he can create it out of thin air. A car, motorcycle, weapons, clothes, food, etc. BUT he has to completely understand the item he's making down to its molecular structure or it won't work. So this character, with his photographic memory, can't do much at first but he has the potential to grow into an incredibly powerful character eventually.