I agree with the others who say to check your cabling. Make sure everything is good and tight and properly connected.
Then use a website like antennaweb to find a bearing based on your location, use a compass to aim the antenna. It doesn't have to be EXACT, but it's got to be close. Make sure you're not using the little arrow on the inside antenna bracket to aim the antenna (unless you've verified that it's "clocked" properly to your antenna; it was not in my TT) and be sure you're aiming it with the "wings" perpendicular to your bearing.
Once you've checked all this and properly aimed your antenna, then run the scan again on the TV. I would be surprised if you didn't get any channels. I could get them pretty easily 40-60 miles away from tower/tower clusters on my old winegard.
I upgraded to a King Jack in my TT and saw marginal improvement in signal acquisition, but it was easier to use IMO. You could add a wingman attachment to your wing antenna and probably do just as good...
-2018 Greyhawk 29MV
-1994 Jeep Wrangler YJ (Toad)
-2015 Jeep Grand Cherokee Limited (Soon to be Toad)
-2014 Jay Flight 28BHBE & Ram 2500 6.4L CC 4x4 (sold)