If you open Adobe Premiere Pro, then go to the Help menu, there is an option for Premiere Pro In-App Tutorials. This will open tutorials with sample project files that you can practice with.
Adobe Premiere Pro Tutorial from Adobe Studio
There are more advanced tutorials under the tutorials available online. These also come with project video files as well.
If you open Adobe After Effects, then go to the Help menu, there is an option for After Effects In-App Tutorials. This will open tutorials with sample project files that you can practice with.
There are more advanced tutorials under the tutorials available online. These also come with project files as well.
If you open Adobe Premiere Pro, then go to the Help menu, there is an option for Audition Learn. This will open tutorials with sample project files that you can practice with.