Dear @Michael Tidwell,
Thank you for posting your question in the Microsoft Q&A forum.
Based on your description, you are running out of storage on your Microsoft account and want to know how to add more space.For better understanding your situation, could you please confirm some information as:
Is your account a personal (Outlook/Hotmail) account or a work/school account? If this is a work/school account, are you the admin, or an user?
If you have a subscription, which plan are you using (e.g., Personal, Family, Business)?
Can you confirm how much storage is currently used and available?
Where are you seeing the storage full message (OneDrive, mailbox/Outlook email)?
Please understand that the more information you provide, the more effectively I can support you.
Looking forward to your update.