anyone willing to teach me?

been really moody recently..
not happy, get offended by small matters.
bah.
mahjong with gerald, gatti and yuqi.
wasnt that fun today.
was winning for quite alot 15+ i think.
then the ambiance turned nasty.
i got distracted and zha hu.
then they reccoupe back some of their loss.
then i won some again.
(oh yea, i man tai 2 times)
end up, everyone won except for gatti.


anyway, i wan to ask.

ANYONE WILLING TO GUIDE ME MATH, PHYSICS AND CHEMISTRY?!?!