I had the same problem when I got start years ago. For now you'll have to pull it back into a simple low bun and use pomade and Bobbie pins to keep it in place.
Snoods are chunky and for WWII events. You want a hairnet. The kind that was worn in this era were thin and matched your hair color. They could be worn plain or decorated with ribbon. I use the thin lunch lady type nets you get a beauty supply stores for mine.
The above link is what you should be looking for or you can get one from her site.
Right now it's going to be simple until it grows out more. There is the option of hair pieces, but from what I have heard they aren't much fun to deal with and costly if you want something decent.
Have fun at Shiloh and stay warm!
"...I certainly shall not let them think I am a Lincolnite, but will behave as a lady." --Ellen Renshaw House, Sept 3rd 1863