If you like the music you’re making it means there are people going to love it as well. Because you can’t be the only one in the world loving that music. But yeah like you said you have to know your market. And if you’re one of the possible listeners of your music you can use yourself as marketing experiments.

I’m not sure what kind of product you’re working but c’mon how many times you started to listen someone just because you find on social medias. My suggestion would be try to participate on spotify lists. They’re kinda workin as a nowadays music curators.

P.s: I’m not a music expert nor a marketing guy just answering as a average music lover. So probably you can get a better advice from an expert lol.