hey bro, not sure this will help but here goes.
First, its kinda like when people (and i'm sure those in this thread in particular) say that you need to work on yourself and improve yourself... like if you a fat nygga, hit the threadmill and get slim... if you a skinny nygga, hit the weights and get swoll... if you a nappy headed nygga, brush ya head and get waves... if you can't dress, pay attention to them usher, ne-yo, common ass nyggas and see if their style in clothes is somethin you can see yourself in... so in that same sense, if you can't move around for shyt because you don't have a vehicle, well you know what you gotta do. And if its something where you can't afford a car, or your own spot, or relatively nice clothes/accessories... then that just means you need a better job or you just gotta suck it up until the internship expires and you hopefully get picked up by the/a company (or whatever) for actual good pay. Easier said than done I know, but still. Is your internship paid btw?
2nd, i myself have nyggas i play vid games with, nyggas i lift weights with, hoop with, and a couple nyggas who i can do all the above and roll to the clubs/parties to tag team/triple team these females with. They all my nyggas but they don't all have the same level of interest or mindset in everything that i'm about across the board. Kinda like different habitats, and the nyggas i be on xbox live with aint always the same folks i see in the gym or the weight room or at work or at the barbers, etc.
Point is, if you lookin to expand your social circle, well think about what you like to do bro! You a hooper? Go find some places to hoop at during weekends and you gonna chop it up with the hoopers. Same with the gym you currently workout at, chop it up with them nyggas, join in on they workouts, etc. You in college? see if anyone doin some flag football leagues or intramural shyts. if you go to the barbers, join in on them convos... and then once you become cool with any/all of them nyggas ask them nyggas where the hoes be at, what live events be goin down and hopefully them nyggas will be respectable enough for you to roll with. Basically, my social circle(s) came about through me indulging in shyt that appealed to me (that made me happy or whatever) and being open to engaging with others who had similar interests as me.
Finally, even for the times that my couple nyggas that i roll to the club with aren't with me... it didn't really matter because i didn't/don't feel i need clubs/parties to meet females anyway. Like others have said, just living your life, doing you, will have you encounter females. You just gotta not give a fukk (or, as others say, have "confidence") and seize the moment when it presents itself. See a female at walmart or at chilis or at a gas station or whatever... fukk it, if you take care of and improve upon yourself (as mentioned earlier) go on and talk to her ass... cuz more often than not she is not gonna mind a well groomed, well chiseled, good lookin ass nygga approaching her... its just a matter of other factors like is she with her girlfriends, or have a bf, or is just having a bad day/in a bad mood. And even if its any of the above or something else, its whatever, because they'll be others..