Feeling overwhelmed at practice?
If you've hit a brick wall or you feel as though you can't finish a set, whatever you do, don't get discouraged. Don't get out of the pool. Don't give up.
Swim those "killer sets" one lap at a time, one stroke at a time if you have to. If your lane-mates begin to pass you, let them. Focus on the task at hand, don't think of repetition 11, when you're only into repetition 2. Think about the fundamentals. Are you lengthening your stroke? Are you pointing your toes? Do you have high elbows?
That's how you get it done - by using your mind to overcome your body, one perfect stroke at a time.