I HATE IT! HELP!

I hate my new template and background!!! I was trying to mess around with my background and started using the new templates provided by blogger and totally MESSED EVERYTHING UP!!! Now I don't know how to get back the simple 2 or 3 column template so I can make my blog cute again with a pretty background!!! AAAAHHHH..... I didn't save my old one, (stupid me) so now I am stuck! Can anyone help or suggest another website where I can add a template that I might like? Sorry to be so negative but this really upsets me!! HELP!