1. Launch Self Service
2. Seach for "Creative Cloud"
3. Click Install and wait for the installation to complete.
4. Find Adobe Creative Cloud in your Applications folder.
5. Launch Adobe Creative Cloud and log in. You should be able to select 'Continue with Google' for single sign on.
If you need to create or register your account, refer to this article.
6. Install the Adobe applications you need by selecting them in Creative Cloud. (Installing one application at a time is recommended.)