Go to adobe.com and sign in (top right).
Choose "Sign in with Google"
If prompted, enter your Pomfret School email address... password (for your Pomfret/Google account)
Select "Company or School"
Once signed in, click the profile icon in the top right and go down to "Install Creative Cloud Desktop"

Once it has downloaded, you can go to your downloads folder and install the program.
After you've installed Creative Cloud, you can open it and install any additional Adobe apps (Acrobat!!) from there.