Enjoy Life Every Moment

Im now suffering from body ache. Its from waist down. I guess coz' i haven't been working out and exercise for quite a while that all the pain is there. I literally walk like a penguin. Walking up the stairs is like torturing myself. And i have been playing/practicing my table tennis, but i still can't get the hang of it.

I was so nervous earlier coz' i never play table tennis seriously, like the competition way. I usually just play for fun, no point counting, just as long i hit the ball and it hit the table. But today was my first time practicing with the point and i suck. I have no clue of the rules of the game and so when i was playing the double, i was so lost, everyone have to tell me what to do and time to change. 

I need to read some online guide line for table tennis or something. Anyway, im freaking out. I have no idea how to get myself out of this. Help!