Hello Kate Weaver,
thank you for posting on the Microsoft Community Forums.
Generally, you can find your BitLocker recovery by following the steps in Find your BitLocker recovery key - Microsoft Support. If you can’t find the BitLocker recovery key and are unable to undo any changes that caused it to be needed, you’ll have to reset your device using one of the Windows recovery options.
Since you mentioned there is a problem when you reset your computer, can you please provide me more information about this error? It is best to upload a screenshot about it.
Best regards,
Lei