You should not create anything.
If your account type is SR25519 you should follow this tutorial:
If your account is of type “sr25519” (created directly on the portal instead of using the Polkadot.js extension), use these instructions instead
You should set up your wallet :
0. Your account type should be injected (please check the tutorial above)
- You should use Chrome/Mozzila
- Please switch off all other extensions like clover, phantom and etc.
- Set up your wallet Allow to Use in any Chain or Kusama relay chain
- click claim.
Don`t worry. Feel free to ask if you have any questions.