being a complete douchebag will never get you anywhere. you need allies to an extent, and you need to have a good energy. Being an asshole will limit your networking abilities completely. I've learned to be warm and friendly, but still have a strong identity/precense and be assertive. it's a beautiful thing.
I am an asshole in a way, and i bust everyones balls, but i'm playful about it. makes all the difference
there's a balance, at 19 it's hard to find.
i've always been on different side of the spectrums, and it took me till 24 to almost figure it out. some people NEVER figure it out.
if you're really nice, you're a pushover. if you're a total asshole, no one will like you and think you're bitter (some immature girls respond to this, but if you're not fun to be around you'll be home jerking off. and why would you even want a girl with that type of values?).