For as in one body we have many members, and the members do not all have the same function, so we, though many, are one body in Christ, and individually members one of another.
It’s hard to see someone doubt themselves when you see such potential in them. God has uniquely gifted each of us with certain talents. Whether it be in the workplace or for His church, He gives each of us the ability leave a mark. Never doubt that there is something you are really good at, that will enhance the lives of others and give glory to God, the Creator.