We're also first time TT owners & before our first trip I printed-out several checklists to follow before leaving the house (search for checklists on the forums...). We probably brought too much food along & too many tools, but we had everything we needed for our first 8 nights camping...
Although I am new to camping, I have a CDL & have towed commercial trailers, etc. One of the most important things to remember is hitching/unhitching your TT correctly, especially since you (should) likely have sway control bars, etc. Unlike the level concrete at the dealership, many campsites slope & therefore you want to be especially safe so that your TT or TV does not roll. I kept our TT connected to the TV by the safety chains until I had our wheel chocks in place, everything was level, AND I had the additional X-Chocks in place (these lock between the tires so that they cannot roll...). I also kept the kids far-away & gave my DW clear instructions not to walk between the TT & TV.
Although I was very safe, I still made mistakes - like forgetting to fill-up the freshwater tank before setting-up the TT at our first campground without a water hookup. I also had to take an unplanned detour around a low bridge because I forgot to measure my TT height before leaving...
Just remember to be safe, have fun, and don't sweat the small stuff. You're going to forget something and/or something will eventually go wrong but don't let it ruin your vacation. Just deal with the problem, move on, and enjoy camping. Also, don't forget to let other campers know you are new at this - I have found the camping community to be very pleasant & helpful - just like the camping forums...
2011 RAM 2500 ST Crew Cab 5.7 Hemi
2011 Primetime 3150BHD Touring Edition
Days camped in 2016-36
Days camped in 2015-37
; Days camped in 2014-31