Welcome to the forum!
I do agree with @nhcarrigan’s suggestion on reading thorugh the previous topics where this issue is brought up. Make sure to look at Quincy’s response to the issue.
I do want to clear up this idea of what it means to create a project that is functionally similar.
This is my own Technical Document page and I will explain why it is functionally similar but does not fall into the category of plagiarism or violate academic honesty.
In my project, all of the user stories pass which is where the functionally similar part comes in. I made sure I had a class of nav-link, my navbar is on the left hand side for laptop sizes, etc. But from there, I chose my own content and style.
Don’t feel like you are bound to the FCC sample. Think of it more like a guide or skeleton to build from.
Hope that clears it up.