Firstly, I'm not saying that this guy is wrong, but you need to seek out whether or not God really wants these things for you. Many people in the name of Jesus get caught up in the moment and "predict" what other peoples destinies are in the church. Don't take it lightly, I've seen it happen.
Secondly, if you're serious about being a pastor you should be seeking out a mentor. "Pastor" is such a broad term: there are many kinds that deal with various issues in the church. Picking up books on evangelism and pastoring is also another good way to start. I was good friends with a pastor growing up and some of the things that he had to face were downright terrible, but through his experience and understanding he was able to get through the problems in the church. Prepare yourself.
And lastly, make sure you're reading the Bible everyday and seeking God. There is nothing less ineffective than a spiritually dead pastor. If your heart isn't right with God than you can't expect to help others be lead to Christ. Hope that helps.