@alyssasookread of course, how I did it was I planned out events that I wanted and then looked at how many events there were. I then looked to see what ones were main events that needed a chapter on its own and what ones I could put together. Then you will know how many chapters you should do, it's okay if you don't follow it all the time. I had to do that.
I hope that helps, message me anytime you need help. I would love to read your story. Stay safe.