Disabling iCloud without itunes password

Nope, not much you can do about it besides remember the password that you supposedly put there.
Apple will not help you if you bring an activation locked device, its put there for a reason.

 

Wait. You purposefully created a new password for the account all by yourself but you forgot the new password? I think you'd be more likely to forget an old password than a new one? And you don't remember what is the answer for a question that you set up for yourself to answer? And... you don't remember your birth date? It's so unfortunate.

I'd suggest you to bring along with your proof of purchase and identity documents to an Apple Store to help you sort that out.

 

Sadly, I think we're in for seeing more threads like this- legit, or not-

 

I can't remember my password, my birthday or any of my test questions and my dog eat my homework too

 

I've never forgotten my birthday, perhaps one day I will.