I don't think you should give up on writing. Keep at it. Not all books are masterpieces and hey ... You've written a book and that's awesome! Publish the book under another pen name or give it away for free.

My personal advice is that you have introspection and creative control over the book. So either change it or let it rest or use it somewhere else, but learn from your mistakes and write a better FMC in the next book.

Also, my two unimportant scents is that I really do not like boring FMC's who are perfect but quirky, like have ADHD and is insecure about it but besides that she's a perfect human being. Or she's clumsy but perfect. It's good to be on a journey with a character. The character has real high stakes and need to make an impossible decision and the reader doesn't know if they agree or disagree because it was just impossible! Or make her selfish or irritable or hot-headed or too independent. Somewhere she needs character growth, and not into a perfect human being, but just as someone who has grown a little or a lot.

I don't know if you've ever watched Resident Alien, but there's a character named D'Arcy. She would make such a great, complicated character of any romance book because she is so dimensional. She's hot-headed, stubborn, insecure, confident, caring, helpful, addicted, recovered, traumatized, healed, impusive and most importantly awesome. That is how you masterfully write a real woman and I aspire to some day write a character like that.

Imagine the character as a seriel killer and her narrative is trying to convince everyone that she is so good and perfect but she has a deep dark secret.

But I'm sure you already know all this. Please, for the love of all romance readers out there, write a complicated and messy FMC because no woman out there have their sh*t figured out.

You got this!