I got doubts about myself

Dear makers, designers, developers Yesterday I launched Coverwraiter and it was an epic fail. To validate it, I had it online for a few weeks, driving potential customers to it with Adwords. I had 3800 impressions and 120 clicks, which is about the 3% I expected. Of these 120 people that clicked only 2 generated their free letter. Most did not even click on the confirmation link they got… I tested with friends and got positive feedback, there were no errors or whatsoever… however, friends might be too nice. I would appreciate your comments on what is wrong, what should be changed? In my opinion, the page generates great letters with little effort for my clients while also respecting their privacy and a very fair payment model. Am I so wrong with it? Any feedback is appreciated, you‘ll find the product called Coverwraiter. Yours sincerely, Peter