You seem to be having adult acne. This acne is due to underlying hormonal change or lifestyle issues like smoking and stress. Please eat healthy and avoid junk food. Exercise regularly and drink plenty of water. Use a ph balanced salicylic acid face wash twice a day. Avoid picking at your pimples to minimise the risk of scarring.
You may need oral antibiotics as well as retinoids to help you with the acne. As adult acne tends to be difficult to treat. Please contact a dermatologist who can examine you and prescribe the appropriate skin care products. It is important to follow up with the recommended medicines so that you prevent scars.