As a new users, this is may be confused and it happen to me. I want to share my way using google drive,
Upload your photo on your Google drive
Right click on picture you want and select "Preview"
Click vertical menu on top right side and select "Open in new window"
Right click on the picture and select "Copy image address"
Go to your steemit setting and paste it on profil picture url
click "Update" button and viola, you did it. :)