Have you ever felt like you get nowhere in life?

One thing to help with success is to not give up. Those that have succeeded will tell you this, work hard and learn by your mistakes cause you will make lots of them. It is a mistake to think that success will be handed to you on a plate. So try to understand this. Then - persevere. Don't take the No's personally. It's not you so much, maybe they just don't want the product. In the process of doing this type of work you are interacting with people, you are learning skills that could be invaluable later on. So ask how would you like to be treated. A person who is too assertive doesn't get far either. Be honest with your job as people are becoming so annoyed with crafty salespeople, the consumer is learning to see right through the ploys. Regardless of peoples moods, try to stay as centered as possible. Be polite regardless. When they are angry and you get a no, say Thank you for your time. You are in the firing line with this type of work. Try to learn from it. I get the feeling it is a stepping stone for you anyway. Often people who persevere and want success will get it.