Discussion Groups / ESL Teaching / May 2006

Here's a corrected  version. Please understand that many other changes to
your original  words are also possible. I've tried to make only absolutely
necessary changes to try to keep your meaning intact.

What you said is quite right. My future is in my own hands, and I should
look into this matter seriously and carefully. But I don't want to leave
my job here right now; how long I will stay here I don't know.
That depends on many things.

And besides, changing jobs is a troublesome thing to do.  As for my
relationship with colleagues, I treated them respectfully as suits a formal
relationship. I have never scolded them, never offended them but I
don't trust them. I don't want to get too close to them, nor let them
get to know my inner heart.  Keeping one's secrets is necessary. I
don't know what they truly think of me, but once your weaknesses are known
to them, some of them may use this as a means to tell all of them to the
boss, and it is hateful.

Apart from grammar you have a style problem.

Don't put the referrent before the antecedent. It's confusing to the reader.

e.g. You should have put 'job' first and 'here' after it and probably
put 'weaknesses' before 'secrets'.

Overall, I suspect your real topic is  your colleagues and your fear
of them telling on you to the boss and that should perhaps have
been your opening statement.