Since '05 I've been riding seriously and purposefully (mostly because I feel like a 10 yr. old when I ride my bike, and I really like that). Each year I've seen improvement, whether in ability to go long distances, or speed, or hill climbing ability. As my cycling goals have changed so has the focus of my training. This is a sport that yields results year after year, when you ride regularly.
Congratulations on your success so far. And post a picture of that bike, please.