Have no idea what the hell is happening with the lyrics.
They are talking about love story, nothing related to other fields.
But the main theme of waiting and hesitating makes me cry out.

Why I just CANNOT be confident like how I should be.

How long I've waited for an interview of my ideal job?
How much I used to long for a profession that I adore?

I never succeed to persuade myself that I'm not qualified at all.
I know who I am, and what place I deserve to be posted.

But why...
When opportunity knocks at the door eventually, I just cannot believe anything?

All those left with me, are only nervousness, distraction, dispraise..
before I get to have the first look at the hopeful friendly invader.

I am getting lost between the approval of myself and the fear of failure.
The feeling is much stronger than ever.

The problem is, how long I can still wait?

: (