Sometimes you are looking for a job and it does not turn out well. And you take this personally. Some ask themselves, what do I lack? What is wrong with me? It really hurts their ego.
Well, If you think you are properly skilled in your profession and you have a good attitude, sometimes there is really nothing wrong with you.
The issue may simply be your skills does not match what the employer is looking for. And this has got nothing to do with you. It is simply, you and the employer do not match.
What you can only do in this case is to just look for those employers who are looking for what you can offer. Or try again when they have an opening that exactly matches your skills or profession.