Review Request: U.S. Medical Insurance Portfolio Project

I still do not really understand what portfolio projects mean but I am going along with what I have seen other people do. Here is what I was able to come up with after two days. I have attached a link to a GitHub repository containing my files. I tried to create most of my functions myself and hope I did that well enough.

I will appreciate any inputs and comments regarding my code and what I could have done.

Thank you for viewing and have a nice day.