We recommend do as much reading as you can by legitmate authors, that is authors who are Zen teachers and know what they are talking about. Be wary of someone publishing to make a buck of the name Zen, there's quite a few.
It might sound conservative, but try reading some of the old classics, but do so with a pinch of salt - Zen is a life time of training and study, when you think you understand Zen, you don't.
That's not being mystic or elusive, that's just how it is. How long and how hard is it to understand yourself and where you fit in the Universe?
Of course besides reading, attend a temple or Zen centre or sitting group. There is always someone with more experience than you to help you, or even a Zen teacher. Group leaders and Zen teachers are not the same, a Zen teacher is someone who has been training with their own teacher for at least 15 or 20 years if it's a lay person. Monks and Nuns become teachers faster but usually because they are dedicated beyond what a lay person has time to do, same as a University Professor.
Here in this forum you can of course ask us questions but of course there's nothing like attending a Zendo and making a teacher-student relationship, we'll talk more about that in another post
Gassho _/\_ (Compassion)