Sales can be frustrating. I've been watching business owners and salespeople for a long time. They worry about up coming sales calls. They beat themselves up when they think about past sales calls. They complain about prospects that lie, break promises, or don't follow through; co-workers that don't deliver as promised; bosses that change the rules; the economy or company policy.
If this happens to you, you can fix it, TODAY!
Say the Serenity Prayer at the beginning of every sales day.
God, grant me the serenity
to accept the things I cannot change,
The courage to change the things I can,
And wisdom to know the difference.
This is not necessarily a religious experience. This is to put your head in the right place.
Try it for a month. Let us know what happens.