Older men have thicker facial skin, yes, but you are only 19 and your skin is still very young and sensitive. The biggest mistake young adults make with their acne is using too many harsh products. I made the same mistake-- trying so hard to control the oils, and using every product under the sun (scrubs, cleansers,astringents, medicated makeup, night treatments) yet my skin was still breaking out and I couldn't figure out why. The minute I cut out all the chemicals and let me skin balance itself out on its own (which is what it was trying to do all along), it got significantly better, and I haven't had a breakout since.
Be very gentle with your skin. Moisturizing is important after cleansing to replenish what the cleanser stripped away, but be sure it is oil-free. Stop exfoliating for a while. This was my biggest offender. Wash again at night before bed.
Listen to your skin and determine whether it is truly oily, or if it is just trying to hydrate itself from all the overtreating. If it feels tight when you smile or raise your eyebrows, your skin is dehydrated and needs time to adjust its pH.
Be gentle with it for a week (no picking either!) and you should notice improvement.
It can be due to whiteheads. It is a yellowish or blackish bump or plug on the skin and is a type of acne vulgaris. It is caused by excess oils that have accumulated in the sebaceous gland's duct.
Cleanse the area thoroughly and apply a good mild exfoliating scrub on that. Apply a medicated cream or gel containing resorcinol, salicylic acid or benzoyl peroxide. This helps is soaking the oil and helps in peeling away the blackheads. If benzoyl peroxide leaves your skin dry, apply an oil-free moisturizer after 10 mins of applying benzoyl peroxide.
If the symptoms still persist then please consult a dermatologist and get cysts ruled out.
I hope it helps. Take care and regards.