I was exactly where you are now, 2 years ago, with the Typhoon H Pro... this forum will become your university and there is a wealth of information for be found.
First bit of bit of advice:
Below is a link to a very good yet cheap nano drone and can be flown around your home or apartment. It will give you a very good basic feel for the sticks, particularly since there is no real assistance with gaining a steady hover or control with GPS assistance on the bigger aircraft, like the Plus.
A great starter quad for under $125... $60 for the Blade Nano QX and I recommend getting a 4 port charger and 4 batteries, so you can get some decent flying time in... these little batteries only give 5 minutes flight time... you should be able to pick one up in a local hobby store if you don't want to wait for shipping.
Blade Nano QX
Fly the crap out of it, being able to bounce it off the ceiling, walls and big screen. Read on the board everything you can about the Plus and it's predecessor, the Typhoon H.
What I'm going to recommend may be hard, but when you get the Plus, leave it in the box for a couple of weeks. Take the time now, to fly the Nano QX and to order some needed accessories:
1) You will need a better charger than the Yuneec OEM charge provided. See this thread:
DY5 Charger
and this important thread on Lipo Battery Care
LiPo Battery Care
Get some minor crash parts, so when something minor does happen, you do not have to wait on shipping:
Typhoon H Plus A Props
Typhoon H Plus B Props
You will eventually need ND filters for smooth cinematic video... see this thread for the current situation with ND filters that will fit the Plus camera:
Freewell ND filters for the Plus
The microSD card that comes with the Plus will not be good enough for quality video... CAUTION! Samsung microSD cards will not work in the Plus. See this thread for known compatible memory cards for the C23:
Plus Compatible microSD Cards
To quote GnR... welcome to the jungle...