Accidental Email Match on Two Roblox Accounts - Can I Recover the Deleted One?

I have two Roblox accounts: T**** Pro yt and a****. Unfortunately, I accidentally used the same email address for both accounts. My brother claims that if I delete one account, I can regain access to my older account (asaf) that's linked to the same email.
Is this true? Could deleting one of my current accounts really allow me to recover "asaf"?
I'm at a loss and would greatly appreciate any insights or advice on how to rectify this situation.
Progress
I accidentally opened 2 accounts and wrote the same email for both of them. Then I had my first account with the username asafmustafa2015 and another one with the username talhaproytmustafa. I accidentally wrote the same email for both, and now I can't access my asafmustafa2015 account, it logs into Talha's account instead. Do I have to delete the second talhaproytmustafa account? I want to access the asafmustafa2015 account. Please give me an answer, I need help.
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