Followers are a side effect of recognition
Strangers follow when they can predict the next video and want it. That means the same kind of problem, the same kind of payoff, and a profile that explains both in one glance.
Chasing a single viral hit to "get to 1,000" usually leaves you with a crowd that wanted the joke, not the show. The slower path is a series. Episode numbers, a repeated hook shape, and a pinned post that says what you do.