feel so tired everyday

NOw i am starting to work.. but i have to do so many non-job related stuff.. like being volunteered into employee's focus group by my boss, organising teambuilding activities (including comin up with the activities and the actual facilitating of the games), organising Dinner and Dance for the whole division of 1000+ people, learning some web maintenance courses, doing powerpoint slides for display on the LCD slides etc.

Why am i doing all these?

Why?

What do i learn from all these, that i may actually put into my resume for the future?

What do i gain from reaching home 9+ everyday, the worst was almost 12? (and no OT pay also)

Why do i have to make my stomach suffer, by having dinner so late everyday?

What do i gain from spending 3 hours everyday on the road?

What am i supposed to say when people ask me what i do..? Eh i do miscellaneous work around the office?

And now i have tuition on every sat and sun.. my weekends are burnt. I cant do the things i used to take for granted, like swimming and jogging. Sometimes i have to meet for discussions on saturdays. I cant find time for anybody, least find time for myself.

Why?