Starting to get anxious. 30 weeks.

Had an OB appointment this morning. I mentioned to the nurse that I feel like I'm in the home stretch now that I've made it into the 30's. She said if I can make it to 33/34 I'll be good. I honestly wasn't expecting her to say those numbers. I was thinking 35/36. So now I'm freaking out. And then I started freaking out that when I get to the hospital and it's really Go time, that I'll have a little emotional breakdown as part of anxiety. I always seem to cry before a major procedure. Wisdom teeth? Yea, totally had to get something injected into my IV to calm me. Tonsils? Cried. My D&C from a miscarriage? Cried the moment they wheeled me away because I knew it was real. I just keep thinking I'm going to cry from anxiety with these twins. Can I ask for a calming aid from the get go? Lol