Of course you can!
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, navigate to the drop-down menu on the top-right and select "Edit Creator Page:":
You will want to then click on the "Edit" button of the Goals section on the far left. From there, you will be able to edit your goals.
Seeing something different?
We run beta tests sometimes and at the moment, there is another option for when editing goals. If it looks different for you, you will still want to hover over the image in the far right hand corner and select "Edit Creator Page". From there, you will want to select the "Goals" section and edit your goals from there.