Time Management

I am a stay-at-home mum.
From 8 to 2 when the kids are at school I ride, I write and I cook while Saba does the housework. In the afternoons we do homework. Then I take at least one child to a sporting activity while Saba looks after the others.
They are in bed sleeping by eight.
I polish shoes, make schoollunches, pack schoolbags and tidy the house.
I am in bed sleeping by nine.
I'd love to sit up and chat to my husband (who's working in Saudi so we'd be chatting by phone) but I can't seem to stay awake - his voice sends me over to sleep. I'd love to drink wine and watch television but if I do I fall asleep dribbling. I'd love to laze in the bath but if I do I fall asleep drowning. I'd love to sit in bed reading but always - with no offence to the novel - I fall asleep after a couple of pages.
What am I doing wrong? Why am I always so tired? For goodness sake, I don't even work!!
I'm starting to think I've missed a page in the time management manual of life, that explains how to relax without dozing off. Does anyone have a spare copy they can lend me?

Children's Church

For my sins I volunteered to help out with Children's Church. The regular Children's Church leader - a primary school teacher with years of experience - was skeptical of my ability to cope. I could see it in her eyes. But in my innocence I thought: How hard can it possibly be to entertain and distract a dozen children aged 3 -6 for half an hour on a Friday morning? Don't I entertain and distract my own four every day....
Well, the answer is: terribly difficult. After this morning's exhausting fiasco, when the theme was Jesus turning water into wine I needed a strong drink myself - a dozen joyful little children can make an awful rumpus.
On reflection, perhaps I shouldn't have told them Jesus is a fun guy who loves to party. And I shouldn't have encouraged them to dance round the church hall, singing "He turned the water into wine, the best they ever had. Everyone is happy now, Let's all shout hurrah!"
Perhaps I should have stuck with script and insisted they sit quietly and colour in a picture?