Trump doesn't talk or tweet about polls in public as much as he used to and one possible reason for that is there aren't very many polls that look good for him anymore.
According to White House officials who spoke to Politico, Trump's aides have resorted to cherry-picking any poll they can find to make Trump feel better.
Aides in the White House often show Trump polls designed to make him feel good, according to aides and advisers. Usually they’re the ones that focus just on voters who cast ballots for him in 2016 or are potential Trump supporters —Trump’s base — but occasionally include public polls like Rasmussen, depending on what the numbers say. [...]
Concerns grow in the White House when the support slides among voters who picked Trump in 2016, several senior aides and advisers said. Aides in Trump’s political affairs shop shrug off public polls that survey the general public. [...]
Yet several senior officials said they don’t trust the internal polls because they are “delusional” or “just not accurate,” in the words of two officials. The numbers Trump are shown are almost always higher than his public polling numbers. “I wouldn’t trust our polling on that,” one senior aide said, after ticking off numbers on health care earlier this year.
They say liberals are snowflakes but I don't think I've ever met anyone who is as dependent on public perception as Trump is.