Stevie Wilson, is a witchy queer comic artist & storyteller who writes an ongoing collection of essay comics about social commentary on society, feminism, and LGBTQ media representation. Most recently she contributed to Eisner nominated "MINE! A comic anthology supporting Planned Parenthood." She's been self-publishing for over 10 years and made her first webcomic in High school.
I printed my first zine in college, as part of my comics program we had to print books for our final. I've continued the tradition ever since, and to this day nothing beats holding a physical product in my hand even though most of my work is done digitally these days.
I think zines give underrepresented voices and people whos work doesn't fit mainstream medias mold and chance to create and distribute their own work. Zines can be less pressure alone and less financial burden to distribute, a photocopier is more accessible than print on demand company with a book minimum. Zines are a way to vent and share an experience with others without a book deal.
There is never a "good time" to make a book, waiting for the time, energy or for your work to just be "good enough" will probably never happen at the same time. But you should make it anyway, it doesn't have to be perfect because people aren't perfect. And you will learn so much just from the process of trying to make it.