This tutorial will show you how to change your student profile picture on your schools' network after the department of education has frozen most customisable setting for your accounts.
Step 1:
Go to myaccount.microsoft.com
Step 2:
Click your profile picture or the pencil icon in the corner
Step 3:
Click "Change photo"
Step 4:
Select a photo you want to change your profile picture to and then click it and use the scale to zoom in to the part of the image you want to set as your picture.