How to launch my very first startup on Product Hunt?

Hi guys! I and my team (of 3) are building an application to make online lessons more fun and engaging. We're recruiting our first users for the MVP expected to be launched at the end of this month. I have heard about many startups successfully launch their product on platforms such as Product Hunt, Reddit, Hackernews but I don't really know what makes the difference (besides the quality of the product itself). This is my very startup, I'm absolutely open to learning and any advice is really appreciated! Thank you so much :)