The search for “free Turnitin class ID and enrollment key lifestyle and entertainment” is a dead end. Not only is it unlikely to succeed, but it also puts your academic standing, your original work, and your personal data at risk.
Turnitin actively monitors for "shared" keys. If a class meant for 30 students suddenly has 500 users from different IP addresses, the account is flagged and banned.
Uploading your work to a class managed by a stranger means they can view and potentially steal your documents.