My Google Account Has Been Hacked - Urgent Intervention Request

My Google account with the address sadems***@gmail.com has been compromised by malicious individuals. I would like to explain the situation in detail: A new login method using a USB device was added to my account without my permission. Then, my recovery email address and phone number were changed. These actions were carried out without any security verification code being requested. As a result, I can no longer access my account or reset my password. My account contains personal information, important documents, and emails I have been using for many years. This incident seriously threatens both my security and privacy. Please initiate the necessary steps to restore the security of my account and return it to me. I am willing to provide any verification information if needed, such as an official ID or old email correspondence, to prove my identity. I kindly ask for your support throughout this process. My alternative email address for contact is muhammedf***@gmail.com. Thank you, and I look forward to your prompt response.