Haha me too! I don't know what I would do without food. I didn't know if you actually wanted help with the picture but I figured I would let you know haha
Well if you are looking for the picture that comes up like if you send someone a comment, that's the avatar. There's a little thing (I'm not good with technical names haha) in My Mibba on the side under profile that says avatar and you can upload a picture. But if you want the one on your profile then it's the photo under the profile portion.
But I'm not doing much, going to eat soon haha