Great news, Lori!
At your age you should bounce back quickly.
My tumor was small, and removed by excisional biopsy. I had no additional treatment (surgery, neck dissection, etc.). That was over four and one-half years ago! I saw two top ENTs who both recommended the "wait, watch and see" approach. This involves frequent appointments with an ENT, and constant surveillance of changes in my mouth. So far so good!
The fear of not having more extensive treatment will subside over time, though it will never go away.
Wishing you the best!