- In Valheim, there is NO clock against you (except when you have a limited time to retrieve your corpse after dying, or the fact that days last for 21 minutes and nights last fot 9 minutes). So, you can take all your tiiiime.

- I'd like to also inform you that there's a possible alternate play "through", when you don't want, or don't dare, to kill bosses at first, at once. You can spend hundreds of in game days in exploring first three biomes, training and rising skills, and building things, I think. But only if this suits your playstyle. You'll have to be violent, and experience violence, but you don't need to kill bosses.
Advantage of not killing bosses (at the moment) is that your only adverse raid is the hunting party, that is almost worth a hunting morning, and you don't have to build defenses around most of your houses.