Brava Monica.
I started a little less than two months ago to write on Medium.com and since a few days ago, also like you I became Top Wrtiter of the Ideas topic.
I am honestly not thinking about earnings on Medium because it is still too low an income to be considered real income.
Maybe one day our income from this platform can grow, I hope so, but the only real thing I have learned here on Medium is that perseverance and persistence always rewards. Having a place where you can share through writing what you like to do and also get paid to do it all ... it's really nice.
Enjoy your continued success.