๐ I just passed 250+ subscribers for our daily newsletters - https://devmates.co . Main lessons of this - do things that don't scale (http://paulgraham.com/ds.html).
โ๏ธ In the morning I open Twitter/Reddit/LinkedIn and start searching for potential users. I make the list of them and then start introducing myself and share a few words about my project.
I afraid of doing it before, but then I realized that the worst things that could happen - they will say "not interesting".
๐ Don't let your fear stop from doing what you want to do.