A lot of times you can also fall into the trap of suffering from the tyrany of the urgent. You'll find yourself dealing with things that are URGENT URGENT URGENT but avoiding or putting off those things that are important. Set good daily priorities, review them with your supervisor, and this takes a bit of courage, but you should point out that things on the lower end of priority schedule may end up not getting done unless you get some help.
I work in consulting and there are always peaks and valleys of project related work. During the peaks, I find I run on adrenaline for two to three months then you start to get sluggish. You need the valleys to recover, recoup and recharge for the next effort. Normal daily work load gets dealt with effectively in the manner that I've descibed above. Keep your composure and work with your supervisor to make sure that he/she understands what is getting done and what isn't based on common understanding of priorities.
Good luck Strange....
You'll make it through.