Agree with the cat’s opinion.
While people enjoy reading completed books, you build up and audience through update schedules.
You can post your book as complete in the blurb, so new reader’s are aware it isn’t going to be abandoned, but regular updates are important.
As you are doing this, start promoting. By that, I mean enter contests, hire review books, get some critics if you’re planning on doing some revising and want to get some pointers. Participate in your genre club. Also promote yourself in the threads. Be friendly, helpful and memorable. Get yourself out there. Keep an eye on the ‘story requests’ section and suggest your book when it fits the bill.
Be seen often and it a positive way.