Level 84 - and no coins

I’m at level 84. The tea factory is $400k and I have 40k coins. What am I doing wrong? Have I been hitting the zoo too hard? But I love those little animals! I used to have so many coins all the time and now I don’t.

I send lots of helicopters. Pretty good on the planes. Mini game is annoying and most days I don’t play but maybe a weekend day will get a couple hours. I fulfill as many friend requests as I can. Mine is x2 and I make sure to do it.

I have 5 zoo enclosures not built and 3 pending materials. I’ve enjoyed seeing the help dispensed here! Thought I would ask!