Stay away from a preacher who never takes time off even if ill/old, who insists on dealing with certain people - that’s a red flag! Questionable circumstances are a red flag believers have to look out for.
Here is how the gospel works; you’re told the news first and then you relay it to others. Never claim ownership of it, instead pass it on, share and never enforce it upon a generation.
Treating it as if it is yours is corruption or abuse of the delegated powers.
Remember Rome was not built in one day, meaning the gospel is a complex task, it takes all our efforts, and great achievement takes time and effort and should not be rushed.
So you pass it own to show that you have understood the gospel. No generation claims supremacy, the fathers passed it own to their sons (kings), prophets to other prophets too, and to Jesus, and Jesus to the apostles (Holy Ghost), and the apostles to us and so forth.
I like how John puts it, he said, "I baptize with water: but there standeth one among you, whom ye know not; He it is, who coming after me is preferred before me, whose shoe's latchet I am not worthy to unloose," John 1:26-27.
Yes, revival has probably not come with us, but is coming with those after us.