First time cucumber owner

This is my first time having Cucumber plants and I have a small indoor greenhouse. I noticed the flowers on my plants are dead. I have made the mistake of lightly misting my plants on the leaves which I discovered is a big no no. But there doesn’t appear to be any fungus. I do have some cucumber growth.

I suppose my question is I assume I killed my flowers because I didn’t pollinate on time. Is there a way I can promote flower growth or anything I can do to make it better?

Also any cucumber tips will be helpful! 🥒 thanks!