111213 English: May I ask for checking below sentences?

I like taking picture(photography?) especially pictures of flowers, because I feel calm when I look flower at them through finder the lens of the camera.(camera finder?) or camera lens.

At the moment, I forget all tension in office in which(where?) I always have to struggle to complete a or any given task on time, where I have to adjust distance and had to deal with this senior colleague who is very much short tempered or has a short fuse.  and I don't do not know when he would explode! his emontion get exploded(haha), .  Also where I have to keep remembering all tasks given to the local staff who frequently delay in work is slow in their work.  and I have to mircro manage them to prevent any delay.follow them in the manner which make them work fast but should not get them hurt.

What I am doing is simply doing my best. I keep telling myself, "No need to hurry, no need to be anxious, don't show myself as if big nor small no need to worry about my status, don't be estatic nor envious,  or fill my life with exhilaration or envy.  Just live as I am. Then I will be relaxed(I relax?) or Then I can feel relax.

But Sometimes I get tired even after all my effort to reduce my tension. At the time, Then I shall look finder peer through the camera lens and take picture of flowers who live which exists just as they are.

Good ideas.