>>857707>How did you overcome it?This will depend on the person I think. I never had this issue, but in the military I met a lot of city boys who had it. In general, being in the dark as opposed to being in a circle of light in a dark environment helped.
>How do you stop silly thoughts, about noises for example, coming up and manifesting themself?You get used to it, you get to know your environment, you get to know and practice, practice, practice what you can do to help yourself. This is especially important in winter when the cold can actually kill you.
>How do you make yourself feel secure?Good knife, preparation, good camp, confidence by experience. Also assault rifles, grenades and a platoon of soldiers plus objective specific auxiliaries at my disposal in the army.