Christians tend to be a compliant, rule-following people.
This is good when practiced out of a spirit of obedience, but it can have its downside too because it can make you feel like you need permission to do whatever God is calling you to do...
... and this can cause a lot of good works to go undone.
But you don't need permission to use the gifts God has given you.
Nor do you need permission to do what you know is right.
You just need faith to follow Him wisely and let Him lead the way.