I am new here and made the huge error of getting OneDrive. I feel as though my computer has been ambushed!

I actually bought a new computer and did not set it up on it but made the error of trying to send an email using a Microsoft user account. OneDrive found me again!

Today, I wrote a text and it appears to be frozen. I can't edit it and the letters appear grey instead of black. Can anyone help me crack into my own document?

Many thanks!