5 tips I'd give myself if I started Substack again at zero.
Write 1 post a week. Just 1. Make it the best thing you publish that week.
Turn on paid in month 1. Even if no one presses the button for 2 months.
Send your free posts to 1 person you actually know. Ask for feedback, not to subscribe.
Write Notes in your Substack voice about what you have in your newsletter.
The first 50 paid subscribers are the hardest. After that, you've built proof. Share it - that's how you grow further.