Dutchman has good points. My TT is 40 feet in length my last 2 TTs were 35 footers.
I've towed no less than 150,000 miles with that size TT. That said it is all in a couple of things............
1. Don't ever be in a hurry. People in other cars and trucks will be more than happy to see you moving with caution as many of them don't like big trailers, trucks, semis etc. They don't know you are more afraid of stupidity on their part of the deal.
2. Mirrors, mirrors, mirrors, may sure you can see the sides of your TT and they need to see the road also. My TV has a convex on the bottom and regular on top. Always trust the convex for traffic and backing up the regular mirror should always see the tires as you turn. Curbs are really the worst. I bent a rim by going over one once. When you commit to your turn look at the trailer tires as you turn as much as watching the traffic.
3. driveways, campsites (pull thrus) always over shoot the drive go to the furthest side as you can and stay to the farthest side and then some.
4. This seems like a lot but if you use caution and plan your moves you'll do fine. One thing to know is most TT have the hitch to the tires relatively in the same distance so even though your TT is long it is close to many others in turning. They all turn wide.
Lastly when backing up do what you can to do it from the drivers side as you can watch your wheels to see the tracking of the TT Don't worry about getting to the spot you want on the first or second try. It is easier to begin to back in then pull forward a few feet to realign the TT to back further.
This seems like a lot but if you travel and use that TT like I do (set up 15 times just for our winter trips) you will be a pro in short order.
OPPS, let me add do not bother with gas stations for fuel do the truck stops and go fuel with the trucks it is a lot easier in and out.
The other thing is when towing (with a 2500 I hope) chances are you won't even know it is back there after a 100 miles or less.