Should I take a break or keep trying?

This year I got over my shyness (see, it DOES happen kiddies! =D). Well, a little bit. I'm still shy enough to be awkward. But I've tried flirting with a few people since the school started (six or seven?) All have been no's, or other forms of rejection, you know. Some I didn't take too well, some I moved on like the next day, random. I'm not sure if I should keep trying for now, because I'm really starting to run out of girls I like in my school (I'm pretty picky =/ it doesn't work well with shyness lol) and I really don't want to **** up any more chances, or should I "get my game together" as some of my friends say haha and keep trying?