Why can't I network efficiently to my benefit?

I am a 24-year-old college graduate working at a prestigous University in a high-paced department. I have always had a flare for 'partying, mingling, meeting people' but when it comes to actually following-through and using those persons as resources, contacts---I fall FLAT. I don't know what it is? I'm very attractive and most business(men) are ALWAYS coming on to me ually and most business(women) are too intimated to ociate with me. I am starting to become discouraged in my business endeavors, because I see other women partnerships and men partnerships flurishing--while I'm struggling to get taken seriously. I'm focusing in on my people skills, business plan and communication tactics---but keep meeting dead-ends. On top of this--I have no close friends here in the city I live--so it's hard to build alliances with strangers...What am I doing wrong? What should my approach be? Is this a sign that, it's not meant for me to be a business entrapuneur? I'm tired of spinning my wheels