If you’re frustrated with Fiverr, remember that the competition in your category is probably pushing prices down and client expectations up, so adjust accordingly. After all even Fiverr advertises itself to sellers as a part-time, freelance lifestyle, not a full-time job.
Remember, too, that clients are willing to pay higher prices for sellers with higher reviews. Build a strong portfolio of positive reviews and your ability to charge higher prices will rise accordingly.
This is what I learned from my whole day research. If you have anything to share, please go on!