Hair Stuff
Have some fun and look on You Tube for any number of videos for military women's hairstyles for uniform purposes, especially buns, including the infamous "Sock Bun."
Either very short in a precision cut or shoulder-length with no layers that can be quickly put up wet or dry, are what I used (26 years of practice, can still put my hair in a bun with about 8 pins in under 2 mins), female shipmates used and what I have observed our USNA midshipman sponsor daughters use over the years. Plenty of pros and cons either side - challenge of keeping the short cut looking good and within regs if access to a decent stylist is limited versus slightly longer time to put hair up in braids/bun but no stress about finding someone to cut it right.
If your hair is thick and heavy, go to dance supply sites and look for the serious bun pins that professional dancers use (many shades) to secure their buns. I used a brand called "Bunheads." Silly, but they worked well for me.
Some sort of defrizz product such as John Frieda or BioSilk are also good to smooth it all down, especially for inspections.