PF

yes
i know the answer is "No"

but i cant help it sometimes

i told myself i would stop drinking and start exercising more
but of course i didnt do so well

i drink almost every weekend, not excessively, atleast 2 or 3 beers and sometimes more

if i keep this up, will it affect me greatly as i get older?
if so, in what way?

yes, you should stop drinking.

well depends
do you want to be an 18 years old with huge tummy
because u know that drinkin a lot of beer causing big tummy..
definately not sexyyy