buy or not to buy????

sepanjang 23 tahun hidup ni (minus 11yrs), sepanjang 12 thn memakai facial cleanser, i never found cleanser yg bole reduce my super excessive oil in my T-Zone. Minyak kat muke leh buat goreng telur kalau aku duduk dlm aircond lebih dr 4 jam. Last week, i bought Aug Cleo mag, dlm tu ade The Body Shop Seaweed Mattifying Day Cream sample pack, i tried to use it in 2 days, and the result: my face appear to matte sepanjang 2 hari aku tepek cream tu kat muke. Skarang ni, i've been thinking to buy or not to buy those seaweed facial set cleanser and cream. Maybe sbb tak penah beli such cleanser yg harganya smp camtu skali kot yg menyebabkan saya berfikir byk kali...and, i read this somewhere:

DON'T GET CAUGHT IN THE BIG SALE TRAP AND BLOW YOUR MOOLAH ON THINGS YOU CAN'T FIT INTO OR DON'T NEED JUST BECAUSE THEY APPEAR CHEAPER. HERE, QUESTIONS A SMART SENDER SHOULD ALWAYS ASK :

WILL I BE USING THIS ITEM MORE THAN 10 TIMES PER WEEK/MONTH/YEAR?

(yes, i'll be using this at least 3 times per day)

WILL BUYING THIS ITEM POSITIVELY CONTRIBUTE TO MY LIFE IN ANY WAY?

(it should be, because i've tried the sample pack for 2 days, but what if when i buy this, it doesn't show any changes in my face?)

CAN I AFFORD THIS WITHOUT HAVING TO SKIMP OVER THE FEW MONTHS?

(i'm not sure if i will buy this next month if the stock is empty, or just use it for 1 month only, or will keep using this permanently..i just don't know..worry to cut off my shoe hunting program)

I don't know why am I thinking like this...maybe, the combination of all the set will broken up my wallet, or because i think this is an expensive thingy (for me) and i feel doubt what if it doesn't show anything?

hmmmm....just wait till the end of the week...