What should I do about my email being full up? i thought it was unlimited? and now my contacts are saying emails to my address are bouncing back?
Unlimited refers to the amount uploaded and downloaded by your modem, like web pages, or videos, etc. And even then it's not completely limited because there is a cap of 1 TB.
You will need to delete some of your emails in order to free up mailbox space and let email be delivered again.