IMO it's not hopeless, but there are a lot of problems like:
-There are over 23k audio files on NF; there's a lot of stuff; it's just that usually the same old stuff keeps getting shared
-most hypnosis is just crap if you use the standards of certain good hypnotists that keep popping up; But there certainly are good ones
-how do you pick the good ones? With visuals it's easy to spot a hot chick and weed out the disappointing 98% fast; With hypnosis, you have to be more creative and probably invest time and money as there isn't a good rating system on these sites. Doesn't help that many don't even offer voice samples and the profile information is often pretty generic and fake; But it's possible, though cumbersome.
-obviously very hard to replicate what 丂卄丨乃乃ㄚ and 千丨ㄖ几卂 have done as you need a lot of people who already know and appreciate your work
-more money with visuals
There are a lot of creators. For most, the main income seems to be phone sex and findom. Which isn't helping quality, but at least its keeping the industry afloat and options open. If you see exceptions like ᗪ卂尺Ҝ 千尺乇ㄚ卂 it's a good idea to patronize them