God knew what He was doing when he made you. It doesn't matter if you are just a child, a teen, or even an adult. God has your back, so don't be afraid to do what He asks.
If God told you He would do something, He will do it! If you are not sure if it will come to pass, find a bible verse to stand on. If He said you will be healed, read 1st Peter 2:24 and hold on to His promise. He won't lie to you!