Acne at your age are very common.
Don't worry regarding the same. Start applying clindamycin cream in the day and benzoyl peroxide in the evening for the same along with doxycycline capsules 100 mg twice daily and you will be all fine wishing 10 days.
Next Steps
For scars see a dermatologist and it will be all gone with some basic chemical peeling sessions
Health Tips
Don't use any cosmetic over the face and avoid oily food