I'm actually launching an action template for product hunt launches, which helps you prioritize which tasks to work one, and avoid spending too much time on your launch.
I would recommend setting aside at least two weeks to prepare for a product hunt launch. This will give you enough time to fine-tune your product, create compelling marketing materials, and build buzz around your launch.
During this time, you should focus on completing the essential tasks that will make your product stand out on product hunt, such as creating a compelling product description, identifying key features to highlight, and gathering customer testimonials.
You should also plan to spend time building relationships with the product hunt community, such as by joining the product hunt Slack channel and engaging with other makers and hunters on social media. This will help you to build excitement and interest in your launch, and increase your chances of success on the platform.
Overall, a well-planned product hunt launch can be a great way to gain exposure for your product and build a loyal customer base. By prioritizing your tasks and avoiding unnecessary work, you can ensure that your launch is a success.
A good way to build relationships with the product hunt community is to be active in the discussion area of the website. That is how I gained most of my followers on the platform.