MY PFP WONT FREAKINH WORK!!!!!!111!11!

i jist want to have a cute sonico pfp plssssssssssssssssssssssssssssssssssssssssssssssssssssssssss every freaking time i upload i a cute freaking photo it goes to the defualt it looks so freaking bad AND I CANT EVEN CHANGE IT!!!!1!!!!!!!!!!!1111 whhyyy plssss it makes me want to eat a brick