Request for feedback on US Medical Insurance Portfolio Project

This project was very hard to start, seemed like a really big project to tackle. But once I started to take it a step at a time I really enjoyed it and even now look forward to future projects. Background I am a Stats graduate and have done projects before with teams but I mostly offered statistical theory advice and did not do coding.

This took me around 8 hours spread out among multiple days, I have so many ideas about how to analyze the data and test it but I realize this might come up in future modules and I need to just post what I have so I can make corrections and continue learning. I am really looking forward to any replies and a big thank you to those who do reply in advance!

Edit: Apparently the very next lesson is learning about Pandas so I probably should not have used that library in this project.