I think he is. He won the presidency. Out of hundreds of millions of people on the US, only 45 have ever become president. He'll forever be in the history books. Bigger than any Trump sign he can put on any building.
He constantly reminds people how miraculous it was for him to win. How impossible it is for republicans to win the presidency because of the electoral college. How all the polls got it wrong. He reminds the press "I'm the president, you're not".
No matter what the public thinks, it'll turn out ok for him. George W Bush was one of the most hated/divisive presidents, yet it seems he's forgotten now and he's living comfortably. It will be the same for Trump.
He'll have secret service protecting him from the public for the rest of his life. Protecting him from protestors while he enjoys golfing and vacation wherever he goes. He literally will be living in his own bubble. No negative thoughts. Just golf, fine dinners, miss universe pageants, and a television remote control.
The good life. Trump won. He's having the best time ever. Never forget, he's president, you're not.