Struggling to unlock all the areas in Super Bear Adventure? Any tips?

Hey everyone,

I have been playing Super Bear Adventure for a couple weeks now and I am completely hooked, but I am stuck trying to figure out the fastest way to unlock new zones. I have collected a decent number of coins and gems, yet I still feel like I am progressing way slower than I should be.

Are there certain levels that give better rewards, or hidden shortcuts I am missing?

Also, does upgrading gear actually make a noticeable difference in later stages?

Would love to hear from experienced players who have already cleared most of the map.