How do I open my unity projects?

Questions & Answers
1

I can create a project just fine but when I leave and try to click on the project again nothing at all happens.
Any solutions?

2

have you installed unity hub ?

3

@Arash2008

Here are a few videos i found on how to open unity projects.

With Hub(2020): How to Open an Existing Project Unity - YouTube

Without Hub(2017): How to Use Unity - Create New and Open Projects - YouTube

With Hub should work the same with unity 2019.