You don’t need to create a new account for your CFG - if you claimed successfully, they are already in the account that you claimed with (the same wallet as you contributed your DOT from). You already have a CFG wallet in that same account as your contributed your DOT with.
Check this post to understand how accounts and wallets work in Polkadot.
Check this Forum post to see how and where to see your tokens and remember to use the account that you contributed from.