Navigation
Map, compass, and staying found.
Getting lost is easy. Staying found is a habit. The map and compass don't run out of battery, and they work where the phone doesn't.
The basics
map know where you are before you need to compass orient the map, take a bearing landmarks note them as you pass, not after turnaround decide your limit before you leave
The rule
If you're not sure, stop. The trail back is the one you just walked. It's easier to retrace than to guess.