I don't think he needs some wing-nut like Dr. Phil to tell him anything.  Trump has already said, several times, "it is what it is" and seems to know his place.   I hate when big-wigs stick their noses in other folks business.  If I were Trump I'd tell the blow-hard to get lost!

https://www.westernjournal.com/dr-phil-announces-big-plans-trump-discusses-potential-revenge-elected/

Trump's ultimate revenge is going to be to BE elected, not pounce on his enemies.  Besides he can get all of those pent up feelings out of his system at the debates, should biden actually  be able to stand up long enough to have debates.  I heard biden's team has already asked for tables and chairs to be provided for the debates.  Trump doesn't want to sit down, he wants to stand up to talk and I don't blame him.  I would feel the same way.

We'll just see if sleepy joe can manage to stay awake and functional for a 90 minute stand-up debate.  Now THAT should be entertainment !!!