I got ArcGIS Pro (from my school as part of my course). I ran the administrator and added the licenses.
Now, when I'm trying to login ArcGIS Pro, its not allowing me to login with my regular ESRI login Credentials.
Error: Your Account could not be used for ArcGIS Pro because it is an ArcGIS Public Account.
Thanks for your time and wisdom.
That error means you are not signing in with an ArcGIS organizational account. Only an ArcGIS organizational account that includes an ArcGIS Pro license can be used to sign in to ArcGIS Pro. You probably have more than one ArcGIS account and are signing in with the wrong one.
Follow the steps here to find all your accounts (associated with each e-mail). That should help you find the correct one to use.