There is no shame in what works for you. If you find yourself having to 2nd guess yourself when moving files to and from several external or internal hard drives, or other USB storage devices, the solution is simple.
When you format a drive, give it a very descriptive name. One that you can quickly identify at a moments notice. It will save you time knowing where your data is, but also will help prevent accidental data loss (aka mistakes)
Let us know if we can guide you through the steps.