Yes but the most important is to lower your expectation, I had lot of hope last year too, my earning was increasing greatly, and I start to see some interesting result for the future.
It doesn’t mean it won’t happen again but right now the situation is really bad. Maybe a new system will be create too, but also maybe some opportunities will grow outside stock world !
This is still worth it if you consider it in a long term game, first for your skills and learning curve, then for the opportunity it could create, YouTube / Spotify, custom work, sync library to join etc and in last come the money. Which can be there, with great sales, but which could disappear the month after.
I think you have to keep your stock adventure in any case, this is worth it for many thing. But if you do this only for money, yes this is maybe “hopeless”. I believe patience is still a key, also some steady work and steady musical release will help !