Hi Andy, and welcome!
Sorry, I'm not familiar w/Epilem, but I sure have experience with some of the seizure triggers you mentioned. Sleep deprivation is my numero uno trigger. I have to sleep no less than 10 hours a night now. As a matter of fact, my epi. doc has prescribed a drug for me to assure that I sleep like a rock.
Stress can cause increased seizure activity. For me, extreme heat and too much activity, even fun activity like boating or jet skiing can bring on a seizure...as well as social situations where I'm talking to a lot of people in one night. I call it "Brain overstimulation."
The key is recognizing your "triggers" and doing everything possible to take it easy. You can't avoid them completely, but if you start to feel like you're overworked, take a step back...maybe take five minutes, find a quiet place and just relax.
Also, be sure to communicate with your neurologist. That is most important! Perhaps your Epilem dosage needs to be tweaked or you need an add-on drug? Or maybe you could benefit from a "rescue drug" like a low dose of Ativan (Lorazapam) that you can take if you feel a seizure coming on?
Talk to your doc...that's why he gets the big bucks!