Tag not monitored by Microsoft.
Learn profiles are self-managed. Microsoft cannot do this for you. You cannot merge two Learn profiles with personal email accounts.
You need to use a work account as a bridge:
- Sign into Learn with your old personal email account
- Link a work account to your old Learn profile https://learn.microsoft.com/training/support/learn-profile-manage#add-login-accounts-to-your-learn-profile
- Sign into Learn with the work account
- Remove the old personal email account from the Learn profile
- Link and merge your new personal account to your Learn profile https://learn.microsoft.com/training/support/faq?pivots=profile#can-i-merge-two-profiles-of-mine-into-one
- Optionally, sign into Learn with the new personal account and remove the work account