I'm currently working on an ASP.NET MVC app where, when the user logs in and they see their own personal data connected to the app. It's kind of like Trello, where the user will be able to track their own progress for projects.

I've only been coding for a year now. I'm really struggling to find information on how to create the one-to-many relationship between the AspNetUsers table and my custom project table. I'm not even entirely sure what to search for, since this seems like such a common type of application; I figure Microsoft should have a tutorial on how to do this, right?

Given how much I'm struggling to figure this out, I'm starting to wonder if I should change the scope of my project. Right now, I anticipate only one user for the app and intend on using it for portfolio purposes.

Could someone help guide me towards relevant tutorials to creating a one-to-many relationship using Code First EF for AspNetUsers table and a custom table? I'm using Visual Studio 2017. Or, what would you suggest as better scope for a beginner/intermediate programmer for this project?