Sounds like you abused the heck out of your car. No car will look good if you don't take care of it.

Had my car almost 5 years. Has 56K miles and I drove it daily for 4 years. I washed it once or twice a week depending on the weather. Inside and out it still looks and smells like a brand new car. Not a single ding, scratch or defect on the interior or exterior. I recently went as far as cleaning the engine compartment. I always parked in places where nobody would ding or touch the car. I just took real good care of it.

Treat any car with respect and it will take good care of you!