What does it mean? I suppose people are immediately identifying with OP and posting their own personal reflections. There's a lot of agreement among the posts, and many are expressly or implicitly Stoic.
It's a double-edged sword in that sense: on the one hand, one can unintentionally spend a lot of time online, but on the other, browsing has given me the ideas and encouraged me to contact people in real life, which led to real positive career changes.
I think a lot of people can relate to OP's situation, and really wish them to succeed. If they can think critically about a lot of these comments, and selectively consider the ones that make sense, it can be a great starting point to seek real-life resources that will make a massive difference over time.