I want to forgot my apple id

Marking your own post as Solved may prevent others from trying to help because they think you have fixed your problem.

You want to forget your Apple ID or you forget your Apple ID?

See if you can recover the ID/password.

Apple ID - How to find your Apple    An iCloud e-mail address is an Apple ID.

Apple ID - Find              

For the Apple ID password, enter the Apple (iCloud) ID and click Forgot Password.

Apple ID - Manage            

Apple ID – Forgot Password