You totally should go for it! But make sure that if you do race that day, you put down nutrition no more than 2 1/2 hours beforehand. I had a teammate choke down a Cliff bar minutes before the crit and she didn't feel so good.
Do you not have many women racing in Ohio? We nearly set a record on Sunday with 39 women in the race. The average speed was 22mph. Female participation in the PNW has grown significantly, despite 50% chance of showers.

And typically they will separate the Cat 4's from the rest of the group. The 1/2/3s always race together. But I look forward to the races with the combined fields. I strongly believe that you're only as good as your riding partners.... advancing up a field can certainly boost skills.