Travel Through Time and Space and Become a Female General

What should a soul who has traveled from another world, relying on his previous life knowledge and current martial arts skills, be able to do literature, martial arts, and cure diseases, go to the battlefield, and enter a study room, fall in love at first sight with a person who has been infected with a strange poison for a short period of time? Go to heaven and earth to find medicinal materials, save them, cure them, and wait for the young man to give his blessing.