I read where you didn't pass - very sorry to hear! I think you are in good company with at least a few of us - it took me four times to pass. :true: The most important thing is that you don't give up!
I am not sure if there is a good strictly Environmental PE Review out there (I could be wrong but I haven't see it). While I didn't take the strictly Environmental PE - I did help a few friends out during thier preparation.
I think the thing that is more important (regardless of discipline) is good organization. It sounds like it will be especially important for you since you have test anxiety. Since you are not taking the exam for one year, my recommendation would be to begin putting together a collection of binders of YOUR collected materials. I will call upon the other Env PE exam takers to help me out with major organizational headings but I would separate things into categories like: Air, Water, Wastewater, Waste, Radiation, Industrial Health, etc. in order to feel MORE comfortable with where to find things.
Once you have your binders put together (at least the first edition) use them to begin solving example problems. In this way you will KNOW how effective those binders really are for dealing with sample problems. In addition, you can supplement those binders with material as you go - especially equations, conversions, and other shortcuts.
The other thing you can begin to do is to pick up any additional references ON THE CHEAP. Again, I will call upon my fellow Env PE exam takers to help out here but this is something else that you can ACTIVELY take on while gearing up towards your study period.
I think you can also begin to figure out a study schedule focusing on exam items that didn't score well for you. I know from my previous diagnostics that wastewater treament was poorly rated because I don't really work in that area now. I refocused my studies into those areas while maintaining a comprehensive review - never assume you 'know' something. You need to refresh your mind at a minimum if for nothing else to help alleviate some of you test anxiety.
Best of luck in your preparations!! Let us know if there are other things we can do to help you out.
JR