You get to choose a power to give to the you from 10 years ago. This timeline will be "gone" It's technically only a possible timeline now.

The you will have no knowledge of it, and relieve only the bare bones instincts on how to use it. No mastery, only just enough to activate it or keep it active.

No omnipotent powers or derivatives of them.

You can even do powers from media or fictional media. Though the power would have to be more specific.