You just get the idea you need to be in the wilderness (whatever is local - hot, cold, dry, wet, etc). You can pick anything up you want on the way out, but you can’t stop walking out the door.
How long do you reckon you would make it living off the land? Any special circumstances or tools that would have helped?
Depends on how strict the rules are. If I’m allowed to grab my camping gear, theoretically I could last a long time. But strictly speaking, it’s not something I can just grab on the way out, and obviously I would need to pack it too.
Assuming the first scenario, the next immediate issue would be water. It’s very hot here right now, so I would need to find a reliable source of water, and fast. Realistically, initially my only option would be to drink from lakes. Without a water filter, there’s always a risk of contamination, but I could start boiling my drinking water once I get a fire going.
The second issue would be food. I know nothing about hunting, and I’m a very inexperienced fisher too, plus I don’t have any gear for it. My only options would be berries, and maybe trying to make a crude fishing rod out of a tree branch and string and hoping to get lucky. I don’t trust myself enough to touch any mushrooms unless it’s an absolute last resort.
In the long run, I think food would be the biggest problem. Most likely I would starve to death long before winter. If I somehow managed to sort out the food situation, I could try to find a protected spot for the winter and gather tons of firewood. My thickest sleeping bag is only rated for -10°C, and it gets as low as -30°C at least once each winter here, but with a fire and a sheltered spot, I think it would be survivable. But then again, food would be an even bigger issue during winter.