Unity Deleted Everything

So, I opened up my project, unity asks to update, I deny, because I knew that would mess up my project, what with all the new settings for unity, I close the tab and everything is gone. my assets are still there, but everything in the scene view is gone. What happened?

Basic question: did you ever save the scene you worked in?
I had that awkward situation myself when was learning unity.
When you build something, it’s just there, in the project. But when you update, it needs to load a scene. And if there was no scene created, there’s nothng to load.
It doesn’t offer to create scene, which is lame. You need to know, and save the scene.
Pardon my mistrust, but since you just joined unity forums, I suggest you’re new to the engine.
So just go to File and hit Save Scene As… And create a folder named Scenes

Okay, I figured it out, I just had to open the scene, instead of the project. If anyone else has this issue, go to your project and search for your scene.(if you did it in the default one it should be called sample scene). Then open it.