It took me a few few weeks to really start to "get it" although, I must confess, I am still "getting it".... Lol!
I think one of the important lessons that I learnt early on, and it seems like you have also grasped this already, is that comments are one of the best ways to build your network and community on this platform. Because the reality is, to start blogging as a newbie on this platform, very few, if any, readers are going to find you - this is true for any blogs on any other platforms to be fair. So I would carry on as you're doing right now and make genuine and useful comments by adding to other people's posts. I would encourage you to add maybe a post of your own each day if poss as readers will inevitably come and check out your profile to see if it would be good to follow you (and if there's nothing there, then you are unlikely to get a follow..! ).
^^^ And what Steve said :)