COMPUTER SAVANTS, URGENT HELP NEEDED!!!!

I just spent 5vhours writing something complex and difficult. When I highlighted to copy and paste, the whole thing disappeared. All that is left is the letter "T". 😧😢☹️🤯I am several clicks and open- closes away from the event. It's not in the trash. Is there a way to find what was there like 2 hours ago? Help!!!

https://files.mastodon.online/media_attachments/files/111/135/105/241/592/417/original/9778f8c935891796.jpeg