mid-late 20s doomer here, I like a lot of sewer's stuff, apparently she's gonne for good… did you listen to goodbye? As to success in marketing, from her account doesn't seem to have been that successful, screwed over by record labels….
It's not easy to be original nowadays, you start making a track and it's not easy not to have some other track/artist that sounds very similar to what you're doing…
Go listen to sewer's goodbye, use a propper system, low-end systems tend to miss the lower end frequencies on this one. Kudos :)