I understand that you have forgotten your iCloud username and password and would like to recover them. It may help you to recall this information if you were reminded that the iCloud username and password were the same as your Apple ID and password. If that doesn't trigger a memory, I have a couple of support articles that will help you to recover this information.
First, you will need to know your Apple ID. This support article will help you with that: If you forgot your Apple ID
Once you have recovered your Apple ID, you will then need to recover or change your password. This support article will help you with that process: If you forgot your Apple ID password
In your question, after mentioning the username and password, you continue with "and more". If these articles don't answer your questions, please feel free to post back with what additional info you may need and we can go from there to answer them for you.
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iphone 5s 64gb - A1453
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