Winter Progression & First Aid

[vipes]

There's a lot of artificial difficulty in this game, it's gradually being fixed but it's pretty annoying in the meantime.

[vatas]

string is very rare to make my pali

It takes more effort, but you can still get Tough Bark from trees to make Bark Cordage, or cut grass or reeds to make twine.

Less than ideal timing for me to discover/share this trick, but you should locate a nearby "Seated Toad" and build fireplaces near it (four in a square or diamond formation should be enough?) and they will melt the snow when lit. Toadflax will then spawn as normal (unless it somehow only works because, currently, in-game it's the last day of the winter.)