Help please

Question

Hello so i have recently removed an email from my alias on the settings page then tried making a new account with the same email i removed it said an account with that gmail already exists but there is a choice called "Create anyways" so i did that and it worked but i still don't know if it will conflict with the old account or anything of that sort so can someone please explain to me how it works and if i'm safe to use it and buy games on it