You punch them in the face and make them see stars. Everyone knows that stars cancels out butterflies and jitters and equals
Just hit it...call and don't be a wussy about it...If things work out, great, if they don't, well, you had fun trying... Now, if you're looking for a L-T thing, you need to move on... Obligatory, this thread is useless without pics...
It doesn't hurt to try again if she wants to try. My boyfriend and I had a 8 months break and I can say that it helped us in the long run. Sometimes, a break can help relationships but not all of them. Good luck!
I don't really know what to tell you, because I haven't been nervous around women since late high-school. In fact, when I'm around new/available women, my brain seems to go on autopilot into "flirty/witty" mode, and I sometimes end up with phone numbers and wonder how I got them afterwards. It's freakin' weird. I guess just try to stop worrying so damn much and just call her if you want to call her. What's the worst that could happen? She'll say no? Who cares! Then you just move on to the next one! Of course, you gotta hope she doesn't do to you what my ex did to me...