If you were receiving 10 followers a day and now started to receive 30 followers a day, you might be very happy with it.
But when calculated that's only 1000 followers a month. In the long run 1000 is not adequate. (It takes 100 months for 100k then).
This is why you need to constantly up-skill yourself and keep improving.
Your next target should be for 100 followers/day.
The Instagram insights are the best place to get the data required, experiment, and improve.