Am I bad for not reaching out (details inside)

So this morning I was in a group on Facebook and I saw someone talking about a psychological matter. It was something I know about and I was compelled to add something. So I made another post talking about the same thing but with a bit of my own experience. My post immediately blew up, with people telling me how that was the most accurate analysis on the topic so far. Then people immediately asked me to give them advice, some said under the comment section, others either added me on Facebook or directly messaged me.

Now this is where the problem began. I really, really wanted to help everyone. I know that the people who asked for advice are the one with genuine problems, but I was afraid that once I started commenting publicly that anyone could ask me for help, I would be drowned in messages (I only helped the people who reached out to me in PM and I’m feeling somewhat exhausted right now, I’ve been doing that since the afternoon).

Am I bad for not telling people publicly to just PM me?