Teebs
First you have to establish one way or the other if you want the job. Say you do, it sounds like there are good reasons. So put that positive core belief to use. Do the best you can, give the paying people the best you can. Give the owners your best, even if you don't agree with them. This should make enough happy emotion to make up for the lack of control emotions. But still it is a 50/50. split. What to do with that other 50%. You have to find something to keep your mind off it. This is the agoraphobia part. This will be tough, you need more than just a distraction. You mentioned taking pictures. That is a you thing, something you do for you. Something you have control over. Seems there is still a little left not taken care of, but it is pretty small. What can you do with this last little bit of agoraphobia.
So far I've got you want to make people happy because it is something you have control of and you want to do something for you. Both happy emotions, very positive and also good distractions. Is it enough?
Now if you can find enough reasons to like the job there will be no bad emotions to build up and boil over, If you can't them you need a way to vent them off. Like kicking a can all the way home. Releasing the anger. You have to release it or it will be waiting for you next day. And you don't want to start the day mad.
Some thing to think on, why do you not like this job? How much of that can you change or ignore?
I need to know more about the job and your likes verses your dislikes. How much you time do you get during the working day?
Here for you, trying to help.
Davit.
Ps venting about it will help to clear up some issues.