Sometimes I get so caught up in business or the day's minutiae that I forget about the value of an uncluttered place and a wandering mind. I'm told a salesperson first must be focused, but I think being comfortable with yourself is an even greater determinant of success. Clients are naturally defensive around salespeople. If you're comfortable, you can bring their guard down, which leads to a sale. I've heard that salespeople should be aggressive, but this generalization isn't true either.
Patience plays a greater role in success.
You're going to be turned down. This isn't a reflection on you. It's just the way it is in sales. After a few months, you begin to know what works and what doesn't. To be successful, you must be goal-oriented, organized and willing to travel.