You may create your own Teamsite on SharePoint for your team.  From our IE homepage, click on 'SharePoint' in upper left corner:


Then, click on '+Create Site' and follow prompt to create your site:

 


Click on '?' for help or go to https://support.office.com/en-us/article/create-a-team-or-communication-site-video-551e190a-8fbe-47ae-a88a-798b443c46b1