Outcast Elf (Outcast Elf: Book 1 2)

Burdened with the handicap of not being able to touch weapons, Finder is facing a horde of monsters, an insane military unit that has decided she's their new leader, and her bosses who want to fire her. If that wasn't enough she is going through growing pangs of becoming a fourteen year old elf. She hated being short, but if she knew growing pains were going to be this difficult, she'd have skipped this kid business, and gone right into middle age.