Hang in there, it does get better. I was lucky in that my session started at 2 PM, so I could go home at noon, eat lunch, lay down for an hour or so, and then drive the 20 minutes to the clinic, go back to work and knock off at 5:00. Being self-employed really helps as the rest of the family could step up. I did notice the fatigue at the half-way point, but towards the end it wasn't so bad. But I sure go used to the noon-time naps. Still take them when I can. The last couple of weeks or so will go quickly. Trust me.
Bob