First Date

bowling date with a guy I met on a dating website in a few days. We've been talking (mainly texting) for about 2 months, but I'm still hella nervous. I'm 26 and never been on a date so I don't really know how to go about this. He knows what I look like and that I'm lumpy, not curvy Ashley Graham, fat (I'm ok with it (mostly) but that causes me a bit of stress. My biggest thing is that I have social anxiety to the point where just typing this out is making me hyperventilate and feel sick. Any kind words or helpful hints would be much much appreciated.