That early engagement window is honestly the biggest hurdle for anyone starting out, you could write something genuinely good and still watch it flop just because nobody interacted with it fast enough. You can get free LinkedIn comments here: https://upvote.club/linkedin . It gets some real activity going on your posts right when it matters most, which helps push them further into people's feeds. Once a post starts picking up traction naturally that way, it tends to keep gaining momentum on its own after that.