Congratulations on finishing your fist game. I had fun playing it.
I have to agree that it was quite difficult. A couple of times I encountered that I pressed [space] in time, but still got put on cooldown. To avoid that you could display the correct area a bit smaller than it actually is, to let them get that close calls; which feels really fun.
Liked the shop items, risk reward for strategizing, pure buffs, you had it all. I’m surprised how many you implemented. Keep it up.