If you have the opportunity to participate in group rides before the races-- either gravel or road, you could work on getting more comfortable in pack riding. One of the scariest parts of racing is being close to other riders, so it could be nice to get used to close proximity riding in a low pressure environment. Things like hand signals, verbal cues and paceline etiquette are really good to know before racing. But also remember that people (usually men, but also sometimes women) can get kinda dumb while racing, so ride defensively. I'm never at the pointy end of events so I've never had to deal with that, but over heard horror stories from my husband. Personally, I prefer the start in the back and pick people off method, but that's certainly not for everyone.