That is Cub Scout level preparedness.
Seriously friend, you are so far out of your depth there is no hope at this point.
No one will be going anywhere.

USB power packs?
Yeah, your not even on the same page as the rest of the class.

You can’t carry what you need, it has to already be there.
You should have at least three locations.

But to rain on your parade with one glorious fact, I give you... Winter.

Go outside, enjoy today.
Tomorrow is not guaranteed.