I used to feel this way for years, even till very recently. After I resigned from my company in 2012 after a fallout with my partners, the highest trafficked job search website in Nigeria - Jobberman - reached out to me to take up the recently open position of CTO. The expectations brought on an overwhelming feeling of being an impostor. There were a number of things I was doing for the first time, and a number of situations I had never been in prior. For instance:<p>- I had built numerous medium traffic web applications in the past but had never done MySQL replication.<p>- I had not had the privilege of managing an application that averaged 4000 visitors at any given time.<p>- As much as I had a good working knowledge of administering servers, I wouldn&#x27;t say I had up to a 100 hours in total of administering Linux machines. I had been a Windows server guy for years, but had a couple of personal apps running on Linux VMs<p>- I had never done application performance monitoring<p>I could go on and on, but these thoughts exaggerated the negatives so much in my head that as much as I knew I had work to do, and knew how to teach myself to do it, I knew I didn&#x27;t deserve the role. In the end, I did my best and transformed the company&#x27;s infrastructure but never did get to shake off the feeling.<p>I can go on and on about why I did feel that way but I guess like the blog post says, we can think always of more ways to cut ourselves down, than otherwise.<p>Being more active on IRC has helped dispel this feeling over time. Self realization when discussing with people you believe should know more than you do also helps - less than two weeks ago, some developer friend of mine was excitedly telling me how they recently learned of the format of IPv4 addresses, something I probably knew before I turned 12. Blogging more often is something I intend to get back to as well. I used to be pretty active 7 - 5 years ago until I got &quot;too busy&quot;.<p>I should add that this is my first lengthy comment on HN, as I never did feel I was good enough to comment on this forum. :)