Carry a good compass and learn to use it.
Get waterproof topo map(s) of your hunt area(s) at 1:24,000 (or whatever matches your compass baseplate). Or 1:40,000 if you want to carry fewer maps. You will burn far fewer batteries this way because you can reference your maps when you have down time in camp and are planning. I carry topos and mark them with general AOIs (Areas of Interest). I have carried color hi-resolution photo maps of my hunt area too sometimes. I have found that the maps that combine topo with aerial photo are very difficult to navigate with because the topo lines are too fine and hard to read within the aerial photo.
Set up your GPS so your home screen shows:
- Azimuth (in degrees) to your next waypoint, camp or target area of interest
- Distance to above
- Elevation at present location
With the above on your home screen, you immediately have the info you most need to know all in one place. This will allow you to use your maps more and turn your reference GPS off as much as possible in between checking bearings/azimuth to next.
You will absolutely be navigating at night at some point, it will be pitch black and you will be exhausted. Get comfortable with it. Stop and eat a snack if you ever get really freaked out, it helps settle you.
Load your GPS with a map of your nearest forest to your home (in the mountains nearby if you have any) mark a couple waypoints in the GPS that describe a somewhat circular route that will take you an hour or two to navigate from a starting point. Do not mark an entire trail, make your points a several hundred yards apart. Be sure some of your route makes you contour at a consistent elevation for a couple points, others up and down in elevation.
Get a topo map of that forest and mark the waypoints on it too in with removable stickers. Make sure this forest is deep enough that you cannot see or hear roads or use city lights to cheat with.
Drive there, take out your flashlight and shine it close on your compass face to charge up the glow-in-the-dark capability. Get out of your truck around 10pm in the dark, turn on your GPS and navigate your route back to your truck. Turn off your GPS between points as much as possible. Use your compass to navigate as much as possible.
Do this a couple times. It will build your confidence a LOT.
If you end up hunting REALLY steep terrain, you may not be able to pitch a tent without hiking a long distance. This may not be an option if weather turns to crap, you're exhausted or have an animal down, etc. Consider a hammock, with a hammock you can hang anywhere. As mentioned by others, they have a steep learning curve. Once you get the "hang" of it, they're a breeze and very compact. Practice with your hammock several times it if you get one. If you get one, buy a down underquilt because a sleeping pad will not keep your backside warm- even a good one won't. Minimum 20 degree underquilt, 10 or lower if in Oct or later.
As mentioned by others, NEVER leave your bow or water bladder on the ground. Even when taking a quick nap. Mice will eat your string or chew on your water bladder mouth valve because it smells like the peanut butter you ate earlier. Ask me how I know. Always take your bow and rangefinder with you when fetching water or taking a dump. Ask me how I know.
Best,
JL