I found it very helpful if we keep track of our inventory, resource demand, and scavenging progresses when playing this game.
So I created a cheat sheet using google spreadsheet:
https://docs.google.com/spreadsheets/d/12hZZOwUR7sNEeO0Puz_z...Detailed instruction can be found in my wiki page here:
https://this-war-of-mine.fandom.com/wiki/User:KinectNinja, where I also shared my profitability analysis and general strategies. I was able to beat the game with all original groups of characters easily.