Doubt your doubts, not your beliefs. Halfway through the year is a good time to reassess goals that you set in August. Set realistic goals. Too lofty a goal can set you up for failure and create a chronic fear of failure which is counter-productive to any sport. Dreams are things you wish might happen.
Goals are dreams converted into plans.
Success is dependent on a lot of factors, but the first and most important is work ethic. If you didn't give your best effort, the buck stops there. The second key to success is to have high standards. If you want to raise the boat, you need to raise the water. Let's have a great '98.