Monday Syndrome

I have my own syndrome every Monday morning. Actually, I don't know how it would be called in English, but I guess everyone can experience it like me. Every Monday morning, I have no idea how to avoid from not getting a lot of sleep and focus on my regular schedule. In my case, I spend most of my time in my church and have to work as a pianist having doing many things for service on the weekend. Maybe, I think, it would be caused by the backwash of weekends. If I put up with this syndrome, I could not keep my regular pattern on my schedule. How can I overcome it? What can I do to for avoiding it? Is this from my weak health?

Sorry to hear about your Monday Syndome. I hope you can overcome it.