Hi Victoria! To cash out your SBD into PHP, you'd first need two things. You need a Coins.ph account and a Bittrex account.
Bittrex is needed to exchange your SBD into Bitcoin and Coins.ph is for exchanging your Bitcoin into PHP.
Note that exchanging and moving your money will have a small fee which changes depending on the day.
Let me know if you have any questions cause I know it could be a bit of a scary process for a first timer 😊