This is an old question and I hope you've pivoted since...
However, if you haven't the simple answer is to focus less on those places. You're in the low hanging fruit section of the web so you will get the low prices-- most of the time.

If you want to be paid based on your value not your time, you've gotta do what the rest of us do. :)
--Hustle to put scalable marketing systems in place.

Begin with the basic fundamentals of mapping out your ideal client, setting up an email list, and put content out there to attract them to you.

I know what it's like (as many experts here do) to get started but you'll never grow playing small.
All the Best!