Hi @SelaKinney ...
Are you referring to your avatar image here in the Canvas Community (the one with the panda and the heart eyes)? If so, you can check out this Guide:
How do I update my avatar in the Instructure Community?
Or, are you trying to update your avatar in your Canvas course environment? (This is different than the link I gave you above, by the way.) If so, here is a Guide for that, too:
How do I add a profile picture in my user account?
I hope one or both of these Guides will be helpful to you. Good luck, and let Community members know if you have any other questions about this. Thanks!