Not necessarily. With over 2/3 of the people distrusting the media, but (from what I’ve seen) more or less believing the aggregate of polls, a public perception that Trump did at least ok may be good enough. And I suspect DT is plenty smart enough to, on the one hand, say publicly “Look at how we did in poll X, Y, or Z!”, and in private, with his advisors, plan the next steps.
Is he a quick learner? Yes he is!
Does he need help, ASAP! You bet he does!
Holt and Hillary had him on the defensive, a lot of the time, which didn't look good. He needs to not make faces and he needs to go on the OFFENSIVE...especially when she has dug a deep hole, which she did tonight, slickly and he did NOT use the time to use it against her, as he should have.
Hopefully Kellyann hits him upside his head and shows him how to take advantage of Hillary's "ooppses".