Im 17 and I dont feel a even a bit of nervousness when around girls im friends with / at school with. But I really like this very intelligent, bright, and cute girl. We were friends since we were like 13-14 and Im starting to really like her. I want to spend more time with her but any time im with her I tense up, start studdering, my voice sounds tense, I start fidgetting, and obviously lose ideas of what to talk about. What can I do? (considering this only happens to the girl I have a crush on)