You do pose an interesting set of issues. It is not clear to me, but I assume you are in a war situation. If so, I would do as many mind sweeps in my spare time so that my mind stays as empty as possible when I need to be 100% focused of what I am doing....like not getting killed.
If you are not in a life or death situation and have some time but cannot use any external tools, I would develop some memory tricks or shortcut codes for things that come up. You might check the internet for "remembering things."
I am also wondering how much you have worked on your Horizons....30, 40 and 50K. You may be living totally on the runway with no underlying guidance as to what is really important to you.
Be safe first