This is a tough industry because it is highly competitive and stressful. The clients ask for candidates at all hours and you better deliver fast or you'll get eaten alive by other firms. This is why you tend to take it personally when someone does not take a job you've worked so hard to get them, etc. Your commission depends on it. You have to have a thick skin because you will be faced will a lot of adversity and rejection. This will only make you better as a sales person.