I find self-help readings are works not originally published with that marketing intent.
Stoics. Scientists' memoirs (self-penned, not ghost-authored). Nautilus magazine. Historical travel diaries. Brainpickings.org (now The Marginalian). Updates from my preferred not-for-profits
All these and more lead me to reflect and are bellows on the fires of my conscious thoughts, activities, decisioning abilities and my fulfillment and happiness.
A rule of thumb (via personal observation) is one should have done a thing ten times before positioning oneself as an expert about it.