All I hunt is heavily pressured public ground and have been blessed to take at least 2 deer a season for the last 12 years.
If you want to watch a real circus, come to Michigan for opening day of firearms. The woods are full of Michigan Fudds. Public land is lined with cars and trucks for miles...no joke.
We have 750,000 hunters in the field on Nov 15th and I still hunt with my longbow.
I hunt in areas too thick for long range shots.
Public land around here is insane with pressure. Best bet is to walk into the cover that no "sane" person would go into. If I don't want to walk into it, that is where the deer are.
I've spent many mornings sitting in a tree in a swamp, wet up to my hips. A little discomfort is worth the effort. Hip boots would be too bulky to carry in as far as I go. If needed I pack an extra pair of pants.
I used to get SO mad when a hunting spot got intruded upon, until one day I saw a deer following a hunter who had walked past me. Now I just keep quiet unless the intruder is milling around.
Go in deep, stay quiet and hunt into the afternoon. Once the pressure gets really bad the deer will start to move around noon. You know... when most hunters are at home....
They pattern us quicker than we do them.
Try to avoid hunting weekends too. If that is all you have for time, then try to figure out how to position yourself so other hunters (who usually arrive just before dawn) push the deer to you. I will sit in a tree stand 2 hrs before daylight if necessary just to beat the other guys.
Bedding areas... learn where they are but don't intrude too much. Keep it to yourself and only hunt on perfect winds. A good bedding area can be a season long honey hole on pressured land.