You might want to use the lunch hour to watch their afternoon assembly.
mcheung,
I am also wake up at 630 am in order to prepare his 7 am study with my kid. He is now attending the pm session of school.
JChan,
Health is important more than everything, especially the company you work, you can always call sick/depress if you do not feel well (both mental and physical).
Take good care, more stress, more winkle, not worth to do.