According to the job market demand and data in recent years, girls who graduated from junior high school and didn't get into high school can consider learning the following technical directions:

1. Beauty salon: This is a female-dominated industry with strong technical and development potential. Beauty salon technology requires certain specialized knowledge and skills, such as facial care, make-up techniques, hair styling and so on. Learning this technology can be done through specialized beauty salon training schools and hands-on practice to gradually improve your skill level.

2. Culinary technology: Culinary technology includes Chinese and Western food cooking, cake baking and so on, which are very practical skills. Learning culinary technology can not only improve your quality of life, but also realize career development through employment or entrepreneurship. Nowadays, there is a great demand for people with professional cooking skills in the catering industry, and learning culinary skills has a very good employment prospect.

3. Apparel Design and Production: Apparel design and production is a specialty that combines fashion creativity and technology. Learning this technology requires knowledge of fashion trends, color matching, garment construction, sewing techniques and other aspects. Learners can gradually improve their skill level through practical operation, and in the future, they can choose to become clothing designers, clothing pattern makers, clothing craftsmen and so on.

4. Early Childhood Education: Early Childhood Education is a specialty that focuses on children's growth and education. Studying Early Childhood Education requires the mastery of certain educational theories, educational methods and knowledge of children's psychology. This specialty has good employment prospects, especially for women, early childhood education is a stable and meaningful career.

5. Nursing: Nursing is a specialty that focuses on the health and rehabilitation of patients. Studying nursing requires a certain level of medical knowledge, nursing skills and communication skills. Nurses are very important in the health care system, and they have stable jobs and relatively good salaries.

In summary, girls who graduated from junior high school and didn't get into high school can choose to study beauty salon, cooking technology, clothing design and production, early childhood education or nursing, which have better employment prospects and career development space. At the same time, when choosing technology, you also need to combine your own interests and specialties, and work hard to study and constantly improve their skills.