I used to feel this way. Paradoxically, I've found that completely ignoring income/clicks resolves this problem. Here's what happened to me:

1. Try and make 'the optimal thing'. Something easy to create, and so lucrative that I won't have to make anything else again

2. flail like the author describes

3. decide that no amount of money is worth feeling this way (or otherwise burnout via your method of choice)

4. make nothing for a while (~6 months for me)

5. start missing some aspects of what you used to do

6. gradually start making those things again, with the goal being to make those things.

Hopefully step 7 is profit, time will tell. If it's not, I'm ok with that too :)