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Question: I haven`t got one single good picture with this camera yet.what`

I bought this camera after reading the expert reviews six months ago and the photos are all noisy and not clear, even the colors are not good. I am not an expert photographer that`s why I bought this camera rather than a SLR or professional camera.I tried every possible settings but still one lousy photo after another.
I live in Canada and I bought this camera in New York so taking it back to them is out of question specially after six months.

I appreciate any suggestion. happy new year to all