Okay, first of all? Anything that happened when you did the things you did? Weren't you fault. It isn't like you had any idea you could do it the first time and you don't know how to control it. That's not on you.
But it is a powerful magic you're using, it's a gift few are given and you definitely need to learn control over it before something does go terribly wrong. I'd rather we not off anyone here to figure it out but maybe we can think of something.