I am assuming here this is a real problem for you. Hmm it
appears it's eating you up inside and destroying your confidence
and outlook. Comparing can be beneficial or a torment, depending on
the individual.
I have to agree with 'speakoutfor' - it appears to be heading
towards the right direction. Not a motivational guru but I can give
yah my thoughts.
Despite the flaws and setbacks, I believe (I mean really
believe, not because I watched a fairy tale happy ending) that the
outcome you desire is the sum of two parts - the right thoughts and
the right actions. If you had the right thoughts and implemented
the right course of actions, eventually, you will have the desired
outcome, similar to any projects we undertake.
It's great you are comparing yourself to your cousin actually
(despite the torment) cause you had given yourself a benchmark and
role model to work towards. I suggest, as opposed to shying away
from your cousin, get to know who she is, what she does, and how
she does what she does, because apparently whatever she is doing is
giving her the results you want.
Then do exactly what she does, :). The right actions should give
you the results desired, and if it didn't work, change your actions
until you get the right results. Plus, you get to mingle with her
friends and figure what they are doing 'differently'. A major
makeover of your image can help, for example.
Hope it helps. If anything, comparing yourself to your
cousin can make you a better person. Jealousy is a torment to
some but a burning desire for others.