brianm717 brianm717 You should backup your data by setting up the backup app, enabling device-to-device backup and making a backup which you can put on a USB drive. You can back up to your home directory and then move it onto a USB drive or do it directly, but doing it directly requires a solid USB connection. You should manually backup apps like Signal/Molly which can't be backed up by a backup service. You can also manually export your contacts and back up your home directory contents. Up to you if you want to include the home directory contents with the backup service's backup, since it's potentially a lot of data and may make it take much longer to backup/restore.
You should definitely make sure that your device is locked. In April, we added a warning page to the setup wizard about this which deters people from continuing without locking along with another page which disables OEM unlocking by default. If you've only been using it for a month. Perhaps you started using it before this was added. It was long overdue due to people forgetting to lock, although there is a standard warning on each boot about not having the device locked.