The winch can be a helpful and powerful tool. The time to learn about it is before you need it, or have the emergency.
BE CAREFUll when working with the winch... ALWAYS! It is not forgiving. You or somebody can get wound up in it & spoil more then your weekend.
I never like to have slack in the line on the drum. If you have a helper, have her stand out in front (like 10 feet outy there in plain sight so you can see her) & keep a physical tension on the line till the winch takes up the slack. This keeps the line tight on the drum. That is imperative, if the line gets loose on the drum & you want to make a serious "pull", when you do, the line will cut down in between the lower wraps on the drum and can be so tight, its impossible to pull out again without a big mechanical advantage. If your stuck, you might not be able to do that!
So ALWAYS keeping tension on the line will save you time re-winding & save your line!
Its very important that the winch is not in gear, when you think its in Neutral. It will, of course overwind and break something. BUT also, something that is just about as bad, or even worse, is having it in Reverse (unwind), when you don't know it. It will start loosening the wraps till its a god awful mess. I saw one, where the line had to be cut off the drum, it was snarled so terrible bad.
When practicing & working the winch - always keep the line even on the drum (easier said then done in a stuck). Keeping the truck & line in a straight line is the key. Otherwise, if it starts building up excessively on one side, you will have to stop, pull out some line and re wind it. Don't be bashful about doing that. It will save your line. Kinks in your line, make it had to work & lessons its strength. If you have a bunch of loose line out, be careful about taking it up, when it has loops in it. The loops are called "a$$holes" & if they pull down tight, they will form a kink that you can't get out again.
For practice: Find a fairly steep hillside that is open & has a big tree on the side of it. Approach the tree and pull out some line and tie onto the tree. Then release your brakes & let the truck roll back against the line. Now you can practice shifting & selecting the gears and not have to get out to see what is happening, or fear that you are going to snarl the line.
Lee in Alaska