Hi Michelle,

The best course of action here would be to create a new account for yourself, and convert your existing account into his account.

To do this, you can update the information in your (current) account settings to reflect his information.

You can then create a new account, and link to his account from the Parent Dashboard by clicking the Add Child button and following the prompts.

If you have any questions or need further assistance with this, please submit a support ticket here: https://support.khanacademy.org/hc/en-us/requests/new?ticket_form_id=182807

I hope this helps!