Can I send money from my Apple Card to my bank account if I need some money?

Sorry, no. The Apple Card cannot be used for cash. See the following from the Customer Agreement https://www.goldmansachs.com/terms-and-conditions/Apple-Card-Customer-Agreement.pdf

USING YOUR ACCOUNT

You may use your Account to make Transactions. You may not use or permit your Account to be used for:

• • ...
  • Cash Advances and Cash Equivalents;
  • ...
  • ...

No, the terms and conditions of Apple Card Mastercard do not permit cash advances.

https://www.goldmansachs.com/terms-and-conditions/Apple-Card-Customer-Agreement.pdf