I DEFINITELY suffer from this! I make physical products (herbal and body care) and despite 12 years of business and some amazing product reviews, I still hesitate to bang my drum cos I'm scared someone might call it-me out to be worthless. I'm thinking quietly about how to combat this and gonna start by actively posting 1 review a day on my FB and instagram pages, and maybe adding one (where relevant) to my steem pages. Helpful post. Thank you from Chiang Mai, Thailand.