Stop twisting yourself into pretzels over your writing idea being perfect or original or worrying about what another author already did. Writing what brings an original spark to a book is how you write it.
By writing books you are going to teach yourself how to write stories and twist them to make them interesting and original. It is a process. Let go of that desperate need for validation and attention and just write your book. All writing is practice.
Stop making excuses for not starting and not writing and not pushing through and not finishing your book. They are a complete waste of your time. Writer’s block is an illusion that doesn’t exist, it is an excuse for not writing. You have to form a writing habit and just discipline yourself to write even when you don’t feel like it. Not feeling like writing is an imaginary writer’s block. Teach yourself how to push through this.
Keep writing and keep improving. Practice more or write another book or try a different idea. Sample different genres and see what you like. This is how you grow as a writer. Put yourself out there and face rejection if it comes, embrace it, learn and grow.
Brainstorming endlessly about your book isn’t writing. You can spin your wheels for weeks, months, years preparing to write. Talking about writing is not actually writing. Find what is holding you back and stop procrastinating.
Writing is largely solitary, you do it by yourself. Write for the right reasons. Like writing, love writing , do storytelling, do revising, do editing and find the thing that you love. Pursue that thing or try different strategies, invent games to make writing fun. Write, throw away all the fear and the excuses and write. You can’t be a writer unless you write and you can’t get better unless you write. Just be happy writing your book(s).
Decide if you want to publish the book yourself or explore traditional publishing. Then learn everything about each method of getting your writing published. When you are ready, you will know which way you want to go.