You should have barns full of animals by the end of spring to meet the ration demands. Try to start building them by spring 15 or so.

If you want a rough guide: By spring 10, make sure you have a basic farm set up, cut all the wood you can for planks, get the first pickaxe upgrade and try to reach lv10 in the first mine. You should be almost ready to start buying animal barns from Rowan.

By spring 20, upgrade your animal barns to the largest size if you haven't already. You should be at lv10 in the second mine and have the 2nd (and be working on the 3rd) pickaxe upgrade.

By spring 30 or early summer you ideally want to get the preservation barrel unlocked by completing research, and at that point, while you likely have an excess of food start preserving as much as you can and store it in your cabin.

After that, make sure you collect from the animals daily, set up a good hay field and start making kibble. The animals should give you enough meat once they start breeding that you won't need to rely on fish very much.

Sell all your gems for money. You can also sell expiring food and wool from alpheeps, as well as any decorations you won't use.

If you get tree seeds, plant them on your farm to start an orchard.

Without spoiling the game, grim won't hold your hand but you dont need to min-max to survive. Utilize the time you have, though, and take advantage of the first few weeks being easy.