I really would like a boyfriend?

Okay, so I'm 18 I graduated a few months ago, I don't have any prospects. I haven't had a boyfriend since last November. And lately that's all I seem to be thinking about, I don't know what to do but I really would like a boyfriend... I don't even know where to look, or what to do, I feel bad because I always intrude on my best friend and her boyfriend... I'm the third wheel. How do I get a boyfriend? And I don't want just any guy, I do have standards, but they aren't unreasonable... What do I do?