i have overtime work manytimes.
and go excercise such as swimming, running durinn OT without don't eating dinner
i'm doing loose weight
OT end time is usually 10 or 12
i'm go to bed at between 1 or 2am

CORRECTION:

I have worked overtime many times.
and go exercise, such as swimming or running, during OT, without eating dinner
I'm losing weight.
OT end time is usually 10 or 12.
I go to bed between 1 and 2 am.