Hi Arian,
Try to avoid picking on your acne to prevent scarring. You may also try to switch to a milder cleanser to avoid the brown spots that appear with your current cleanser. At your age, hormonal changes may play a role, and it is recommended that you always keep your face clean. If it persists, have this evaluated by a dermatologist. Direct clinical examination is essential in determining the proper management.
Take care and best regards.