Hi Teri Markanson,
Thank you for reaching out to Microsoft Q&A Forum and sharing your experience.
Since you mentioned wanting step‑by‑step support, the best way to get personalized assistance is to contact Microsoft Support directly. They can walk you through the recovery process in real time, just like the representative who helped you before. You can reach them at support.microsoft.com > Briefly describe your issue > Enter > Scroll down to find "Contact Support" and request a call.
I know this situation has been stressful, and I want to reassure you that your files are not lost, they should still be accessible through OneDrive. With the steps above and direct support, you’ll be able to recover them and set things up so this doesn’t happen again.
I hope this time things will work out for you.