Once you have successfully signed in to your environment, you are at the welcome screen, from here we will need to go to Administration.
Once there, if you have not done so already, add a Team Project to your Collection.
Once there, provide a Name, give a description and select your Process Template, then Click on Create Project.
It will run through the process of creating your team project
Once it completes, you will see the following message and click on Close.
The next post is about navigating to the Team Project and connecting to TFSPreview using Visual Studio.