You don't have to worry. That is NOT a commitment. It is just a treatment. I say go ahead and buy the gun.
But -- how old are you? Are you a minor? You mentioned something about telling your parents!!

You should NOT buy a gun without their knowledge!
Then you said you don't WANT to buy a gun. Then why the permit? I'm confused.
At any rate, the government will not interfere (at THIS point

) because it wasn't a commitment. If you think you will want a gun in the future, you'd better get it NOW. Cause it's going to get harder and harder to purchase a gun in the U.S. later. And we citizens may need one.

(Unfortunately)
I wish you the very best. God bless and please take care. Hugs, Lee