Manage your apps doesn't appear in Itunes Connect panel

I also am running into this issue. I get a page with the following:

Get Started with iTunes Connect

Select the type of content you’d like to offer, or if you want to
manage an artist on Apple Music.

I found this sentence

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Multiple iTunes Connect Accounts

If you already have an iTunes Connect account for distributing another media type besides apps (music, TV, movies, or books) or for participating in the Volume Purchase Program, the same Apple ID cannot be used to manage apps. When you enroll in the Apple Developer Program, you'll need to use a different Apple ID.

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If ever distributing iBooks, cannot use same Apple ID to manage apps.

Over the year before, I ever test to distribute iBooks and now I'm not.

Now, I go wrong because I'm use same Apple ID where ever use to distribute iBooks to enroll Apple Developer and paid and already receive approve email.

Please advice me, if have the way to switch "iTunes Connect" from iBooks into Apple Developer for distribute Apps.

Or I must use difference Apple ID to enroll and paid again.

Please help to tell the best solution for me.

Thank you very much for every advice.

(Sorry I'm weak in English)