Just use one data store key, but save data as a table. For example:
local SaveData = {
Coins = 0,
Wins = 0,
Emotes = {},
}
I use and recommend you use ProfileService. The creator provides in-depth tutorials on how to work the module, and the majority of the work is already completed for you. Simply used that layout I posted above and then access it accordingly.
Good luck!
- Galactiq