Sat Nam! (literally "Truth Name"--a Sikh greeting)

You may be surprised to learn that the upbeat section is the one that most folks will find boring. That said:

Chronological is easiest to write. Try it first, unless your gut/muse/heart says otherwise.
I've found cyclical books to be a pain to read, but if that's what interests you, you should do it.
Personally, I like in medias res (starting in the middle), then going to the beginning and working to the end. (Not that I always manage this.)

HOWEVER...write what your heart says to write. Writing to a formula rarely works.

And btw, welcome!

Blessings,

Siri Kirpal