Q: I can't unlock my phone after the updates because i forgot my ID, my gmail account and password. Help me what to do???

https://iforgot.apple.com

If that doesn't work, contact Apple's account security team: Contact Apple for help with Apple ID account security - Apple Support

If they can't help you, your only other option is to take the phone and the original proof of purchase from an authorized source to Apple to have the activation lock removed.

If you bought it second hand or on the gray market, you're hosed. It's a brick.