Get more credentials in your wallet
Go to the Discover page and you will have a list of credntials you can collect. Some of them needs a KYC process with a liveness test and a check of your documents. Those data are only stored in your phone, no data are on chain. Like your wallet in your pocket you own your data and assets all associated to your private keys.
You have now one private key for your decentralized identity and private keys for your crypto accounts. To keep it simple they are all attached to the same “passphrase” (12 words) so you just need to copy this passphrase on a paper sheet for safety. Do it as soon as you can !