Quoting MCLegoboy !
If you have your own computer or your parents allow it, I would download the free version of PhotoScape. Due to some backlighting and yellowness, some pics are really weird looking. It is a very simple program and does enough of what Picnik used to do. I never switched to the Google thingy. Basically what I use it for is for whitening pictures and all the colors usually balance out perfectly.
Thanks for the suggestion but my Apple Computer won't support it. I have an editing program though. So I'll try editing my pics. I have the google thing but I can only use it for editing my YouTube account photo.