Here are the instructions on how to sign up for WeVideo:
Navigate to https://www.wevideo.com/
Select Google Account to sign up with by clicking the Google icon.
You will select your student Gmail account (blurred in example).
Once these steps are completed you are ready to use Wevideo. Here are some additional helpful resources on how to use WeVideo:
WeVideo - Recording and Sharing Your Project
YouTube - WeVideo Tutorial for Beginners
YouTube - How to Use WeVideo