Only God knows where I should go, usually I've concerned myself WITH WHAT I’M DOING NOW, not IN THE future. It's insignificant to predict or worry about my NEAR future. This is kind of my creed.

Looking back on my past, there were some critical points that totally SET THE direction of MY life.

Every time I come across THIS point, the big power that I CANNOT see, call IT a kind of intuition or karma, has led me to where I am today.

Let me tell you A story about it.

Before I entered medical college, I never thought that I would be a doctor. Whenever my teacher ASKED me “WHAT DO YOU want to be in the future AFTER primary school?” I would always say "I want to be a scientist like Albert Einstein. (I was a crazy believer of THE Time Machine) Even WHEN I became a high school student, my dream never been changed.

But then thankS to failING my first college entrance exam, the naive thinking that doctors seemed to be cool caught me suddenly and I chose MY CURRENT route and NOW I’M here.

When I WAS DECIDING a SUBJECT TO major IN, I had followed the naive thought THAT neurosurgery looked just RIGHT. My choice has never been based on occupational stability or great humanism.

There WILL be so many choices in front of you. When you meet THEM, maybe you are going to have a lot OF CONCERNS about where to go.

But No one can answer that question. Because each person HAS a different answer. If you want to be regretful less, I can tell you one thing.

"Just follow as what your mind say"

I think this is the only answer.

NOTES:
CAPITALS = CORRECTIONS
- “I've concerned myself the thing I'm doing now, not my future” – I understand what your trying to say. “Not my future” = in this context, better to say “in the future”, because “my future” = something that has direct bearing on my future. Example: “When I have kids, I will have to think about my future as a father”. But in your context, your “not concerning yourself with the future, because your too concerned about your present”.

- “the big power that I couldn't see” – couldn’t see = I did not see before (the big power), but now I can physically see (the big power). “cannot” = not before or now can I see the big power.

- “When I also even decided a major subject” – you can use “major” as a verb here. I major in neurosurgery. Neurosurgeon is a position in medicine, not a subject.

- “"Just follow as what your mind say" – I understand, and because it’s your creed, I will not change it, but it does not make grammatical sense. I would say = “Just follow what your mind says”. In English, it would be more natural to say “Just follow your heart”.

Any Questions? Just ask :) Good luck being a doctor!