[amorphous]

Let me just re-iterate practise, practise, practise. After you have done this sufficiently often, following things happen

1-You'll notice how similar interviews are and develop a routine

2-You'll become better aware of what you want and what your strengths are which will help you to sell yourself better

3-I believe each human being has a threshold of "capacity to being bothered". At some point, you will care less about how interviews go. Just imagine you had 5 interviews per week for four weeks. In no way will you be as nervous in your fourth week as you were in your first. You get used to it.

Try to not take any of this personally. It's a game anyone can learn to play.