Complete noob, need some advice

So a few months ago, I set up a few automatic Tumblr accounts.
Just invested an hour or so in setting up the homepage, and making sure all the posts are done automatically from that moment on.

So fast forward a few months, and these are the stats for the biggest account for March to date.
As I mentioned in the title, I'm a complete noob, and my current IM experience is limited to Instagram (selling shoutouts). Are these stats promising, or just meh? Can someone point me in the right direction of where to go next? Is it worth it to improve this account? Or is Tumblr quickly losing value? Should I be looking into advertising? It's a NSFW niche. Thanks!

as for not per day, I also am getting about 250 notes a day, with 1,4k followers and NSFW niche..