I think (imo) unless you are roleplaying some ideology, random roll or selected the game, especially the early game is about survival.
#1 Essentials, food, shelter, water.
A) Food is an ongoing theme and stress injector. Though I've not done it recently, it used to take a very long time to starve to death. The game will
frequently.. and more frequently "Alert" you to build anxiety and adrenaline.
Food collection early on, depending on season and herbology, berries are the only 100% safe plant to harvest (assuming you can't identify some plant or grass). Meat is the primary survival food as well as for long term security.
a) Fish are locatable, close by, in almost every area (body of water large/deep enough to fish). You are allowed to fish with many items; rock, stone, staff. javelin, club, fishing pole, net, trident. Only fishing pole and net target more than one fish at a time. Fishing provides a possible means to security.
b) Traps, A few versions/years back placing a trap would "cause the start of NPC activities" in usually inactive areas of the world (areas where you are not). This could be exploited to the point that placing a large deadfall trap on a one square tile in a river for example, would "Cause" and animal to spawn on that spot. This used to make trapping very simple as you can guess. Sami has since made AI changes, spawn rule changes, and tied much of a traps success on your trapping skill. Small deadfall traps are great for areas around you where you see small mammals and birds, if you can bait them your chances "may" be improved. Loop snares require resources but can be effective for catching small mammals and birds and are easily moved. Large deadfall, pit/spike pit and fence require more effort/resources but can have huge upside. Placement as mentioned before does require a bit more thought/planning. Trapping provides a possible means to security.
c)Active hunting is when you actually pursue an npc. Rocks are great tools for hunting squirels and slow birds when you find them. Ranged attacks and chase are valid prospects but can be difficult early on. Chasing large game is difficult to succeed without a plan. Large marsh areas are a good opportunity to chase one to to weakness. Using rivers, lakes, seas or other deep water you can limit the animals ability to escape and swim to weakness. Active hunting provides a difficult means to security, especially early on.
Once you are secure you can get into better stuff
With a knife and an axe you can survive anything!