bardichev, it is amazing how much you remind me of myself.
Think of it this way. Either we are both normal or we are both crazy.
The truth is that I used to be very preoccupied with shemiras eynayim. But with time it will become more second nature and you will be able to focus on other things, I hope. I would like to suggest to open your heart up and take out a tehillim. You may do this already. This will help out you take all your wonderful energy and direct it towards Hashem. You will also find that your emotions are hidden away in tehillim.
I also stopped looking at news site, etc. You never know when you will see a picture of a lady. Any site that I need to frequent for work, I block all images.
You do not sound depressed at all. You are bubbling and you do not know what to do with your energy.
regarding keeping focus with work, I wish I had the answers. I have the same problem.