"the power of money"

just now,,
I bought my stationery for facing my becoming exam,,
the total was rm 10.60 and my food rm 2.50,,
I was planned for thrifty for last week, this week until the end of semester,,
but I think right know,, my plan was failed,, I can thrifty on my foods,,
but not for other things,, my shampoo, my stationery, my shopping,
and I also plan for hang out for this weekend,,
money again !!
sometimes,, I felt that rm 50 is just nothing,
rm 50 for one week or usually more than that,,
that's the power of money,,
you can't control that,,
without money,,life is nothing,,
even you want to go to toilet,,you have to pay for that