Don’t worry about it!
Essays and fiction are two different worlds. Completely, entirely different. In fact, each kind of writing is different from every other kind.
Once, in a conversation with a friend who writes non-fiction, we discussed the differences between our differing modes. We finally decided that if it was absolutely essential, we could— possibly— each learn how to do the other’s kind of writing but that we’d only do so if faced with imminent starvation because it would involve starting from scratch as if we’d never written a word before!
So stop worrying and start writing.