1. So jump a lot. There's a new stam regen potion.
   
2. Yes, but, pick your ground. There is enough space for fighting.
   
3. Ok, so you expect they took a year to develop a day of content? Seems unlikely.
   
4. The mist is absolute bull and I modded that. I'm not quitting or putting up with not being able to see.
   
5. Once you get 5 cores you can rotate through the new things (like your first kiln/smelter), none are needed to build the others.

It feels like you're trying to speed run the last biome. Which is fine, but,