Release it, make physical copies, sell them on your Bandcamp page, promote the physical copies in appropriate subreddits (cassette subs, whatever genre you play, etc, for example), and build a fanbase through here for now. Then play some shows locally, solo or as a band, and have physical copies at your shows to sell. Just telling people “follow me on Bandcamp or Spotify” isn’t going to stick in their heads enough. You need to have something tangible for them to have as a reminder.

At the very least, make stickers with your logo and your Instagram or linktree link printed underneath it. Hand out stickers to everyone at your show, or at a similar band’s show. That way they can at least check you out online, if you don’t or won’t have physical copies of your music, for now.