Job hunting

Why is it so daunting to look for a new job? I look at ads for jobs and see things like Advertising Sales required, and my throat closes and my mouth dries up and my stomach turns. Purely because I have been in the travel industry all my life and have been bound by the industry to serve it until my day comes to ascent to Heaven. I will be going to Heaven, because working in the travel industry is all the Hell any person can take. Why do I not have the courage to go for a job in another industry, even if I have no experience? Maybe its because I don't think I can do the job. But I think that of any job I take on. Ok, so the self pity has ended, and I am going to lunch now.