TONS of things to learn/know. LOL
Since you are new to TT's, start with the basics of hooking it up and unhooking it.
First thing when parking are the chalks, LAST THING to remove are the chalks after you are hooked up and ready to go.
The PANIC you will have when your trailer is moving on you and nothing you can do it about it, will make you a believer. I know this somehow. LOL
I personally make at least two complete walk arounds on my camper before moving it. Check for antenna, jacks up, step up, chalks removed, cotter pins in place on the hitch, wife in tow vehicle (since I am hooked to the truck now).
Then I do it AGAIN, about 25% of the time, I find something on the 2nd walk around, that is why I do it. LOL
Now hook it up and go somewhere and have fun!
2015 32 Foot Rockwood 8289WS 5th Wheel
2013 Chevy 3/4 Ton TV