Yes! You can add a new goal, edit an existing goal, or delete a goal you're not too fond of anymore. You can also edit the goal amount at any time.
To do this, visit your creator profile and select the orange Edit Your Page button from the top banner. Or navigate to the drop-down menu on left hand side and select the setting widget. From here, select Edit Creator Page:
Then click on the Goals button on top of the edit page.
From here, you'll be able to edit existing goals, delete them, or add new ones! Select the trashcan icon to delete a goal. You'll see the option to add a new goal at the bottom of this page.
Check out these other articles about goals!
What happens if I don't reach my goal?