So from what i gathered by looking over google maps, i'll be traveling from town to town (or at least close to them) where they're all be around two hours apart from each other apart from a few exceptions which are on two sides of hills. There should be some sort of store within each town or every other town so that i should be able to buy more food, water in case i run out. That being said a 2L bottle should be enough for just walking lest somehow i become dehydrated in the span of 2 hours and keel over.

I've bought a bivvy bag off of ali-express and i plan on buying a tarp too to use as my main sort of shelter. Will a blanket inside of the bivvy bag be suitable warmth or would i really need a proper sleeping bag for that?
I do plan to bring the typical of what i've seen people bring, Head light, power bank, extra batteries, dried/canned foods, some sort of knife, some sort of cooking equipment (i have to find something small so i'll go shopping for that later). I do also plan on bringing a hatchet just in case, some extra clothes and socks and undies, first aid kit (or just part of one to treat whatever could ail me). I really cant think of what else. Though i'd appreciate any advice or tips for this trip.