This FAQ is meant as a quick fix for those who already filled up their Google Drive space and worried about how long it's going to last. The following illustration will guide you to free up and gain some of the space, which might be occupied by unwanted junk in the Trash.

1. From Chrome browser goto > drive.google.com > Click Trash from the left pane. 

 

 

2. After going to Trash, you can verify and delete individual files if you want or else click Empty Trash from the drop-down menu to delete everything from Trash.