If someone is Smart ,attractive and successful I've never heard them suffering from being lonesome , well think about your success ( your carieer i mean ) ,if you had not bend up and down  ,make yourself work hard you wouldn't be successful right? So is other things in life ,if you have some desire of something it just won't come by flying ,you have to give your time for that as well, do your homework ! think about what type you are ,what you want in partner ,and vice versa ,But be ready to give up somethings (sometimes many things) if you want to be in relationship,  it 's easy and complex at the sametime ,anyway having those lonelyness won;t take you any where ,like some guys here said you will one day wish you were single ,then what you gonna do? ,so final point just enjoy the moment, involve in some social events ,parties,clubs ,whatever interests you've ,then things will go from there .I used to feel same sometimes at that stage of my age ,but later i found out those were my best moments of life i enjoyed : D, I'm just sharing here doesn't mean i 'm pro or anything about these things, i totally agree with @bittertruth.