All you have to do is act and think if you are going to stay in your current company . If Foreign trade is your best and favorite , try to step out and be courageous to take next challenge .
I want to change my job
I can't bear my lifestyle any longer.
I think I need something new to refresh my life.
I work as in an International Trading Sales in a small factory.
My boss doesn't care about foreign trade.
I have to finish the tasks he requires about domestic trade everyday.
I even have no time to get to for foreign trade.
Now I can feel that my English is getting worse and worse.
So all I have to do is act!*
<em>Your english is actually very good! The phrasing is a little rough, but your spelling, punctuation and grammar are pretty great. For your last phrase, maybe you could say, "So all I have to do is get my act together!" or "So all I have to do is act now!"</em>