How to keep the same anonymous account?

Thanks.

the time I set for :

anonymous account duration minutes is 120 minutes (2 hours). In these 2 hours I reply with anonymous1, and the 2 hour time ends, I use anonymous2, now all my replies will be anonymous2 (but I don’t want this to happen), I want to reply with anonymous1.

How can I reply to anonymous1 (at this point, I created anonymous2, then I go out of anonymous2 back to the original user)