Although drinking soda is not really good for you, I don't think drinking one soda everyday would be that harmful to your health.
I drink a soda everyday as well and have done so for years and so far my health is still good. I make sure to drink water, tea and other other healthy drinks throughout the day as well.
So as long as you're drinking other healthy other drinks and eating healthy you should have no health problems from drinking a can of soda everyday.