So your first priority is water. Often overlooked and under-consumed on expeditions. I have found people are especially prone to dehydration in cold climates. In the desert heat everyone is very aware of the problem and is disciplined about drinking.
What you'll need to wild camp will depend on the weather and how close you want to get to nature. It also depends on how long you're out for. But let's assume it's a single overnighter and you can extrapolate from there.
My body aches today from carrying the bag but I'm feeling good. I had expected to feel scared and thought I'd need to address that before going on my run but it turns out, I'm quite pragmatic. I remember thinking that being scared would be no good at all so I guess I just forced myself to be at ease. I am ManWoman.
One of the simplest, most accessible and most rewarding adventures we can have is Wild Camping. Anyone, regardless of age and ability, can have a go at this and it needn't require great long hike into the remote wilds of the Scottish Highland.