How do you save person in forest in Legend of Zelda Windwaker?

First time playing and I think I’ll like this game a lot tbh it seems fun but I can’t find a weapon or something to fight with and the forest is closed off with trees I tried throwing rocks but the trees won’t fall. I spoke to all the villagers and no one will give me a sword not even the training guy. Please help can’t find a guide online for this part of the beginning game