As most people have already stated, slow down. Some people (not saying you), want to grab the Typhoon H (TH) and hit the ground running. Please don't. This airframe takes some getting use to (I know, I jumped ship from 3DR SOLOs to Yuneec). There is an unofficial manual somewhere in this forum, (if I find the link I'll post it) look it over.
Secondly, turn your ST16 on (not your TH) and flip all of the switches, turn all the dials, and just get a feel for the controller. When you are ready to fly, put all of the switches in the middle position, especially the top right one, S4 (Smart [not so Smart Mode], Angle, and Home)(not the landing gear switch, the one facing you on the top right).
Before take off, there is a slider switch on the right, under the controller, if you look at it there is a rabbit and a turtle, please, please keep it in turtle until you are comfortable flying the TH. Yes, it will be slow to move (but remember you are in a big open field). On the left side under the controller there is another slider switch, this one controls the camera pitch (up and down), if you look at your ST16 screen and only see the ground, slide the switch away from you. Note, this switch will stop the camera at the angle of the switch, not when you let go. If you want the camera at a 45º angle put the switch at 45º. I get this complaint a lot, why didn't the camera stop when I stopped sliding the switch? Because it's relative, not reactive.
If you are flying and have been playing with the rotary switch on the front of the controller (pan control), the chances you land the camera back dead center is probably not going to happen. Have no fear, switch S2 (Pan Mode) has the ability to center the camera for you, flip the S2 switch away from you for a couple of seconds and the camera will snap back to dead center. Why is this important? I for one watch the airframe and video feed to operate when I am flying, if the camera is off at a 45º yaw (pointing off to the side of the airframe) and I am trying to return to home/launch on my own it can get confusing on what the airframe is doing.
Whatever you do, check the battery on preflight a dozen times, push the back of the battery and the front of the airframe together multiple times. New batteries slide in easier then older batteries, but please check to make sure the battery is seated. Sometimes, the battery can become unseated and fail to provide power to the motors in flight, which results in your TH falling from the sky and ending up in five or more pieces. Check the battery.
DO NOT PUSH THE RED BUTTON IN FLIGHT!!! Unless you have an in-flight emergency and the TH needs to be grounded (crashed). I had a student the other day push the red button at 35 feet, bye bye camera (cgo-ET), a landing gear leg, and two arms.
If you are flying and for some reason you lose sight of your TH or it starts wandering off, flip Switch S4 towards you, the airframe will return to where it took off from. If you are on a boat, driving in a car or flying in an airplane (FAA says no on flying from an airplane, but to each their own) and you think the TH is going to land right in front of you. It won't, the TH will land at the takeoff location (marked as a gps home in the brains of the unit). It is heart breaking to hit the return to home or have an automatic return to home for low battery, and watch your TH sink in the lake/ocean. You get some cool bubbles and it might bob for a second, but your TH is done.
Lastly, when you are trying to land, ensure S3 (OBS AVOID) is either centered or away from you. Centered is preferred. Obstacle avoidance will force the TH to stay away from obstacles, this includes the Earth during landing.
If I screwed something up, someone please correct me.