i really ned it

There is no means to disable two-factor authentication, if two-factor authentication was enabled when the Apple ID was created, or if two-factor authentication has been enabled for more than two weeks. If it was enabled within two weeks, use the link in the mail message received when two-factor was enabled.

If you’re really referencing the older two-step and running very old devices, start here: Two-step verification for Apple ID - Apple Support

If you are talking about 2 Factor ID, it cannot be removed if you have been using it for more than 2 weeks. It is an important security feature.

Why do you think you NEED it to be disabled ???

We CAN assist you w/ that aspect.