God takes time

So I went down to the potter's house, and I saw him working at the wheel. 4 But the pot he was shaping from the clay was marred in his hands; so the potter formed it into another pot, shaping it as seemed best to him.Jer 18:3-4 NIV

When God wants to use somebody, He takes time, just as a potter, to make the vessel. He wants to make the best of the material. If you are not getting out of His factory, just know that you are not pliable in His hand. As soon as you yield yourself, He will make you what he wishes you to be. And that is the best