One of the worst things people can say is "you're too young". People set an age limit on who can do great things, and who can't, but does God? We need to stop waiting until we are all older and work with the chances that God gives us to let him shine through us.
Another thing; we get so caught up in church, that we forget about what it's all about. We go to church and we work on making sure that the time fits perfectly and that everything flows smoothly, but when it comes to helping other people and having a real relationship with God, we blow it and forget about it all. Sadly the pastors get caught up in preaching a good sermon, but don't take time to really help the broken man. Why do Christians preach of love, but when it comes down to it, sometimes they just preach but show no actions?
I wish we could all just change for the better...