When it comes to Newsletter success, consistency, and by that I mean daily, is everything. I started mine* about a year ago and while it's still considered a hidden in gem in comparison to those who raffle of Teslas as a growth-hack, three hours of daily work have gotten me quite a list of renowned subscribers. We're far away from the peak — the problem is that too many people think they're interesting.
Bonus: Don't use Substack — Own your shit from day one.
* https://briefingday.com/