I agree heavily with this, minus the paid advertising bit. I think it depends on your audience. I've grown browserless.io from 8k MRR last year, to ~20k MRR this year wo doing paid ads.

Doubling down on what makes your product what it is is fantastic advice. Making adoption and trialing it easy is also what I'd recommend as churn can become a problem during this timeframe.

Micro SaaS FTW!