Accidentally deleted my wallet

Firstly: it is impossible to delete the accounts in your wallet. The private keys that control the accounts can always be derived from the correct Secret Recovery Phrase. See here.

However, it is possible to delete the MetaMask extension in your browser, or remove the mobile app.

If you do this and later want to use MetaMask again, you'll need to redownload it, and then follow one of these two options:

• Restore your wallet using the Secret Recovery Phrase.
• Access your wallet via your Google or Apple account and password. See here.
• If you don't have your Secret Recovery Phrase, you may be able to retrieve it if you still have access to the device on which you were using MetaMask. See here.