Surving 101: all you need is a knife. Running inland is the main goal but pointless if you dont set your self up first. Priority is finding a knife. Steak knife, kitchen knife, machete, hunting knife combated knife. Houses and sheds will most like have these except the last two. If you cant find one of these then look for a pick axe or sledge hammer. Find the river and use these on the boulders to make "small stones" 2 small stones will craft a stone knife.
Step 2: once a knife is acquired use your ears.. livestock is in this game for a reason most towns have chickens, sheep or goats nearby. Listen for them and locate one.. chickens are the easiest to kill as they have less hp to kill.
Step3. Once you kill, skin and collect both meat and bones with your knife use the bones and knife to craft a fishing hook.
Step4- fire: use your knife on a tree and collect bark 5 pieces will be enough. Use your hands and cur down a bush. You want short sticks as well as one long stick. Use your bark and short stick to craft a fire place. Use your short stick and bark to also craft a hand drill. Once your hand drill is made use it to ignite your fire. Add the left over short sticks to the fire.
Step5: grab your long stick in hand and drag your chicken down to combine roast your chicken wait one full circle to roast other wise you'll get sick from food poisoning. Once cooked cook your other piece as fire will die soon.
Step 6: Feast! You have now efficiently managed to feed your self. Go kill more food!
Keep in mind while looking for a knife find a well and drink till you are full if possible. Dont just drink till you are in the white. A full stomach of water will last you a good while.
Craft two knives or find two. They dont last long if used alot. Once you have your self feed collect 2 stacks x6 rags. 12 total and combine to make rope. 1 long stick and one rope will make a fishing rod. Use your knife to dig for works and add the work to your hook. Then add the hook to your rod. You can now fish and eat better food. Chicken dosnt give as much as fish.
Hope this helps you and others to get your self up and running. Stay safe and good luck