I am so lost on what to do and where to go and having hard time signing in
Me too. Did you have any luck figuring it out. I finally used the whole Student email address to log in and I think I am making progress.
However, learning how to be alone and comfortable in your own skin will give you confidence and a sense of self reliance FaceTime PC.
It makes it a tiny bit easier to save your sign-in username and passwords on the computer itself and not put it in every time. (just a suggestion...hope it helps)