I've just totted up my earning from surveys, tasks, mystery shopping etc since I started doing this a month ago - just passed the £200 mark, plus have paid for a couple of nights out that I'd be having anyway thanks to a few mystery shopping assignments happening to be in local pubs/restaurants which I often frequent, and shopping tasks reimbursing things I'd be buying anyway.
I recently gave up work through ill-health and have set myself a target of three months to try and create an income which will allow me to not have to go back to a "regular" workplace. Hopefully if I can get myself some work with Appen or Lionbridge (failed Leapforce...) then this will become a reality. Also, I really must sign up for What Users Do at some point!
I realise it's not for everyone, but I realised that my health requires that I operate at my own pace and need the flexibility that a 9 to 5 doesn't give me. All I've ever done is admin so I thought I was going to be doing that for the rest of my days and couldn't see a way of making a living at my own pace. I think the difference is that I realise it's not going to be easy, and that I need to put the hours in and try to make this work for me.
I'll be back on this thread in three months to see if I have an answer to "what is it that makes people give up" ;D