I'm sorry to hear that you're experiencing this issue. I'm happy to help.
If you did not set up the BitLocker recovery key yourself, it was most likely enabled by default by the manufacturer or by someone who initially set up your computer.
If you don’t remember, I still suggest checking all the Microsoft accounts you have, including your work or school account, to see if the key is stored there.
Find your BitLocker recovery key in Windows here: https://support.microsoft.com/windows/finding-your-bitlocker-recovery-key-in-windows-6b71ad27-0b89-ea08-f143-056f5ab347d6
If you cannot find it, I’m sorry, but there is no way to bypass BitLocker. In this situation, formatting the hard drive and performing a clean installation of the Windows OS will be necessary. Please note that this process will result in data loss.