I am new to PH. If I had to do a successful launch in 15 days, what advice do you have for me?

To engage as much as you can on Product Hunt with the community daily! Also, to create a 'notify me' page early on - 15 days is still something :) Give feedback to others on their products as well :)

Before diving in, take the time to understand how Product Hunt works. Explore the platform, study successful product launches, and get a feel for the community's preferences. https://idstatuscheck.com