But I'm reading here about all of these fly-aways! If I was to believe all that I've read, I'd have to anticipate that it's not a matter of IF I'll get a fly away, it's a matter of WHEN!
Is this true? Am I destined to lose my drone? Is there something I can do to mitigate the risk?
Is it really just a question of "when"?
I'm a newbie myself, with about 80 flights. I have the same fear and have read and surveyed this forum for a while. Result was that I found "almost" no instances where an MP flew off when it "Shouldn't" have --- that is, in disagreement with all of its settings and ignoring all pilot input, with one exception: those where the flight path was overwhelmed by wind.
On the other hand, I have seen probably a couple of dozen instances where the machine flew off because it was following its own (sane) mind --- for example, Returning to Home, with an inappropriate Home Point has been set. Other losses have happened when it went into ATTI mode (probable loss of GPS) and the pilot could not successfully deal with that.
My habit is to think about the flight and the drone before each takeoff. What things could happen that might cause it (and me) to become confused or to start making its own decisions? Things like loss of signal, weak GPS, low battery, etc. What will it want to do in each case? Can it do these things without hitting obstructions or landing in a tar pit? Review your settings with these questions in mind. The AI in the drone is your copilot, and it is important that you agree on decisions made in advance.
Also; check your autopilot sensors before each takeoff (Quad menu, Advanced settings). Abort the flight if any of the IMU's, Accelerometers, or Gyros are showing any yellow or red. Verify that 10 or more GPS birds have been acquired.
And for you: think about what you will do if the DJI GO app or smartphone becomes disconnected (as it sometimes does.) Or, if sunlight blinds you to the display. What will you do if it switches into ATTI mode? (The MP gives you no opportunity to practice this.) What is the wind possibility at flight altitude (speed and direction, towards you or away from you)? How can you detect that wind is becoming a problem? Have a plan for either getting home or getting it on the ground in this event. Finally: be ready to hit the Pause button on the RC if the drone ever does something that is causing alarm. With battery, this can give you time to think. The RC pause button is more positive than touching Pause on the screen. Sometimes I have to tap my screen a couple of times to get it to take.
There are answers to these questions, but this post is already getting long. One last suggestion is to carefully practice or demonstrate things like flight modes, using the map to navigate, etc., and especially to identify limitations and anything that doesn't work as expected. If you can cover these questions, it appears that the risk of completely unexplained flyaways is very low.