serafimetal, I wonder if you can find another way to share your graduation with your T? Could you show her pictures of you and the ceremony? Pics of you in your cap and gown, marching in with the other grads, pics of you getting the diploma--so she can relive it with you as you tell her the story of your graduation?

Just want to add, congratulations on your degree and good luck in the future as you go further in your education. Quite an accomplishment!