Hey,

So if you're not a system admin your easiest options are DigitalOcean build in Backups. You can read about it on the community blog Understanding DigitalOcean Droplet Backups.

Tldr: Backups/Snapshots are whole server backups at the point of time they are quested. When/If you want you can restore your server back to any Backup/Snapshot you have taken. If you wanted to acess just a certain file you would need to make a temp droplet from the image restore the file and then delete it.

If your after backups that are more frequent than weekly you can schedule Snapshots manually or use a service like the one I run SnapShooter which allows you to take them up to hourly.

Feel free to ask any more questions :)

Regards

Simon
SnapShooter