I do $1m / month across my products
my newest one was flat for 6 months
(and was
April: $2k MRR
June: still $2k
August: went DOWN
I've done this 10+ times and it's always the same: you feel stuck until the product fixes the real pain
in the last 30 days, growth has been insane
now at $15k MRR
there is no silver bullet, at any size
keep shipping, talk to your users, understand their real pain
that's it, everything else is noise