If you hold crypto with a broker like Robinhood or PayPal, you can simply sell your cryptocurrency holdings on that platform. The same holds true if your crypto is on a centralized exchange.
If your crypto holdings are stored in a wallet, follow these steps: Connect your wallet to an exchange. Make sure the exchange supports both the wallet and the asset you want to sell.
Move your cryptocurrency onto the exchange. Sell it for U.S. dollars. Transfer the cash to your bank account.