I remember grinding the game almost 24/7 for 1-2 weeks when it got relased.
Valheim was so addicting, I spent my entire vacation for it.
Wasn't very healthy for me.

Good thing is, after some time it eases up,
But meanwhile, after 300h I started cheating by spawning myself most of the materials I need.

This significantly took some burden from me and decreased the grinding effort
However, I still do mining and stuff, but not that hard any more.

But if you feel like the game is burning you out, you should definetely take a major brake. That's not what games are made for.

Slow down. The game won't run away