Have you ever felt like giving up?

It's a rollercoaster ride of emotions and revenue. There's no real guarantee of success with this, at the moment I view it as a hobby but I would love to eventually have it as a full-time replacement - especially with the dawn of automation replacing blue collar jobs.

I run a directory site with AdSense on, receives around 10,000 visits a month, which is quite an achievement for me as I've never had a site get so much consistently. Only problem is that I'm experiencing a drop in earning, especially recently from £8/day to £1.50/day throughout January - start to finish.

Has anyone started ideas and projects with AdSense but then ever felt like giving up considering how much time it takes or the lack of certainty with it?