Howdy and welcome. Congrats on the new TT; I hope it's a great experience for you. I don't have any experience with changing RV flats; I just keep the roadside assistance premium paid!! I googled "changing a flat on a travel trailer" and got a lot of good information.
I had a small bottle jack that I thought would be perfect for the camper but it was too short. The scissors jack from my truck worked perfectly though.
Make sure your lug wrench fits properly. The one for my truck was the right size but it wouldn’t fit between the lug nut and the hub.
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2018 Ram 2500
2018 Minnie Plus 27RBDS