If I don't hear a reply back from you here, I'll check your tagline or latest featured submission for a message tomorrow.
If for some reason the password reset doesn't work (or worse you can't get back into your Imgflip account) send an email to
[email protected] with the complete details of your problem, ideally from the email account you used to set up your Imgflip account.
If you don't send that email from the actual email account you used to create your Imgflip account, you may be out of luck, that's the authority to verify you are you. If you use a secondary means to contact Imgflip, include a copy of that email address, but I'm not sure that route would get you back in.