We understand your concern. You'll need to have at least one of your account related information (i.e email/username and any recovery options, if set up) to recover you account. Once you have that, here's how you can regain access: https://yt.be/help/2MGr . Hope this helps.
@TeamYouTube
Can I somehow get access to my old channel that I've forgot my email and password on? I can show proof and everything that it's me I just need it to be deleted because I can't use my own name on Youtube anymore because of my old channel.
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I do not know my email that I used for 5 years ago or my password.
End of conversation
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