Can I create a totally different website (hosting provider + domain name) and upload my backed-up files from my old website if I am missing my database backup?
If I understand your question correctly, your domain has not changed and you only want to have your privious website files on a new host. I hope you have a complete backup including the database as well. Then you can follow the instructions via the link below (from step 5): https://wpengine.com/resources/migrate-wordpress-site/ Good luck 🤞