This is a pretty cool article on training. It really steps back and puts things in perspective. It's what I keep telling me daughter over and over when she says she is not good at something... practice and you will get better.
Here's an excerpt:
One of the best training analogies I’ve ever read is by Mike Boyle. He said training is like farming. You do all these things today that you can’t see producing a result in the hope of a future payoff. You plant the seeds, water and fertilize, and scare away the birds, all in the hope that one day some little green shoots will pop through the soil.
And another interesting one:
Lance Armstrong has a saying that if you’re training over seventy percent you’re not building yourself up, you’re breaking yourself down. It’s like putting money in the bank. Each session done right builds your fitness bank account up - slowly accruing fitness session-by-session, day-by-day. Go too hard too often and you wind up having to use your credit card. The only problem with using your credit card all the time is sooner or later you wind up in debt. The problem becomes that in training terms “debt” means injury, illness, and burn out. You can’t deficit spend on fitness.