At the moment, I am past the 100$ limit, so I can't say I share your frustation completely. But I presume we share the reason of your frustation. My sells went down lately, so I am stuck at the same amount of revenue for over a week now. Still, I keep my hopes up, that it will get better! Good luck to you!
I so hate when that happens!!! surprisingly.. I had the most sales on DT in one month this month in april. 23 days in I have had 18 sales... what I cant understand is how almost 700 images here has gotten me only 111 sales ever. I read an article about finding photos on here and the frustration of it..I even have tried to find my work by using keywords and it is like a needle in a haystack. are we getting too large here?
good luck on that last sale.. It will happen!
I am at around $190. Do your research. It is a must. Stock is a huge subject where you need to get into the psychology of the buyers and understand the search placement algorithm. I spent a serious amount of time in that and I am getting satisfactory results now. I still don't upload or shoot on weekends and devote the entire time to studying bestsellers and taking notes in a notepad. Might seem like I'm studying guinea pigs... but... ;)
Serious efforts would pay back. There are too many big cameras around these days. Photographer skills and equipment - neither make a huge difference now. So take awareness and research on your side. Why lose time being frustrated? Study some bestsellers for a break.
55-250mm standard lenses. Dual tube macro flash and external speedlit...
I have to admit it must be frustrating. I lived something similar lately because the only sales I was getting were subscription ones, which only gave me about 0.35$ each. My last sale though gave me 1.61$, which gave me some hope (it feels weird to say that I have hope with less than 2$, but anyways...). So in the end, I would say don't think about it and one day you'll enter your personal account and find that you've hit the 100$ mark. Good luck!