Sharing your work
If you went through this exercise and built a suite of tests, you will have learned a lot about API test automation. One thing that is important in the modern economy is being able to showcase your work. There are millions of testers and developers working in the industry and you want to be able to stand out from the crowd by showing that you really know your stuff. One great way to do that is by sharing examples of the work you have done and the things you have learned.
I have had a blog for years and have found that to be a helpful way to stand out. I personally love blogging, but it does take time and certainly isn't for everyone. If you want something simpler, there are still ways that you can share your work. You can create a GitHub account, for example, and create public repositories that showcase what you have done and learned.
Within Postman, you can also share what you have done. These features are mostly intended for helping with collaboration...