Help me to start here!

Friends who like this platform and use it for a long time!
Please give me some tips of the most effective way to use IndieHackers.
As I understood, this is the platform for building communication with the Indie Makers.
But how to build it? Is this necessary to write articles or we can just engage under other's posts?
I write articles but they are not popular, I understand that I still can't choose the right topic.
My first article had 17 likes, but other - 0 :(
I am too dissapointed!(