How Do I Control My Magic Powers?

K, listen, and I am not trying to be mean here, I can tell you that you are not the magic one, it is God who gifts this ABILITY to you. No one else, and there are things that you need to know and do before you just go playing around with all that you have been gifted with.
Never claim that they are YOUR powers. They aren't yours, they are on loan so to speak. This is usually used to aid other people in their paths of their lives. I to this day have never gained a dollar for what I have been gifted with.
That isn't it's intention. Now, you must pray daily, and nightly to God that he help you to better learn how to manage what he gifted you. If you need to, ask Him to turn it off for a little while so that you can rest and better prepare to handle this gift.
Until you can learn that part of it, you will never have that kind of control over it that you really want. I hope that God grants you this, and I hope that you find better peace of mind when you are learning more about this and you. Hope this helps, and really, best of luck to you.

just calm down and think happy thoughts