When you go to your profile or main page, there will be a button saying 'edit profile'. Once you click on it, it will take you to a page where you can edit almost everything on your profile. There you will find an area saying 'profile photo'. Just choose a photo and drag it from your system and onto the blank area and that will be that. If it doesn't work the first time, just keep trying it. It will go through. Just try again and it will be fine. And ya don't worry everybody has these problems when they start. Good luck.