Yeah, steemit could be a bit overwhelming at first, but not to worry, you'd get the hang of it. For blogs related to your interest, try searching them from the top-left corner of your phone.

There's a drop down menu, with *home, new, trending and promoted * options; you can select any of that. The home button would take you to your feed, which would display recent posts of those you follow. The new option would take you to the currently(real-time) published articles. The rest also follow their terminology pattern.

To streamline your search, you can select tags (your interests) to view from, and then you can comment and upvote as many articles as you like, and even make some new friends while at it.

P.S if you're using a PC, the tags are search menus can be found on the left side of your screen.

I hope this helps, cheers!