Beloved,God places us where He wants us to serve, and every task we undertake should be given our all, whether there's one person listening or a multitude. We ultimately serve Jesus, and He is not concerned with the recognition we receive. He desires our obedience and our best effort. This is true not just for pastors but for all believers.
There are many reasons the Lord calls us to serve. He rids us of pride and selfishness, allowing our focus to be on Him. We show our love for Christ through our care for one another. God tests and purifies our hearts through service.
The Lord desires that we discover His plan, obey, and become all that He intended.  Beloved if you want to succeed, follow the goals God has set,you'll find them in His Word