Sorry to hear about your loss. You can't be "under the impression " of how the Phantom works. You need to KNOW how it works.
Yep, that quote needs to be a sticky or something.
Things to practice and make sure that they work the way you think are all three modes of the RTH in a safe place so that you KNOW what it will do at signal loss.
And see what it feels like to take over from an "auto land" while it's right in front of you and not over some far out factory.
A few minutes of ATTI flying at the end of the flight with those leftover minutes on the battery may come in very handy some day.
AD