Let's post failure stories that led us to learn a valuable lesson

I was running an SEO marketing firm for a long time and I was barely hitting 50% on my leads. Finally, I took a close look at my website and realized that I had no sales letter.  This meant that I was getting half of the traffic and no sales. I started working on the sales letter and my conversion rate went to nearly 80%. I don't know if this is a "failure story", but I learned something valuable, which made me a far better marketer.

In my first actual job, which was a sales job, by the second month I felt like I lost all my spark! I felt like I couldn’t even reach to the client successfully, so I had to resign. I decided that I had a lot to learn, so now I’m the sales intern of a very valuable company and have learnt a lot so far!