It’s good if you have an emergency food ration on your raft. However, you won’t necessarily starve without one.
If you have rations, divide them into small daily portions. This will make them last for a long time, and you won’t have problems with digestion.
If you don’t have one, you can make a fishing rod from lace and, for example, a piece of can (for a hook) and try to fish. If you lack such items, try catching seaweed. Small fish can get stuck there.
Try to fish even if you have stores of food. After all, fish contain some liquid.
Don’t eat spoiled foods, no matter how hungry you are.
Constantly provide yourself with liquid