I feel your pain.
Acne sucks. It is not just a teenage problem either. My problem with acne began when I began college. All that stress made me break out. Unlike you, I would pick, which has given me scars. So good for you for not picking!
Going to a dermatologist would probably be best, as there all sorts of treatments now. Some have really bad side effects though, like accutane. It makes people suicidal :/ I have not been to a dermatologist, but I have pretty much tried everything else. I still have spots but I can live with those. This is what has worked for me:
1. Cetaphil!!!! It is a very gentle creamy face wash. You can even use it without water. Just rub your face gently with it and take off with a washcloth. I cannot recommend it enough. It is cheap and you can find it at all the drugstores, Target and Walmart. The generic store versions work as well and will save you a couple bucks.
2. A spot treatment with 10% Benzoyl Peroxide. I get the generic Target version. This I apply after washing my face. Just a little bit on each pimple. I only use this once a day when necessarily. It dries my skin out if I use it too frequently.
3. A moisturizer is a must. Even oily types need to moisturize. I use an Aveno moisturizer. It has SPF as well. I use it after the spot treatment.
4. Also, be sure to change your pillowcases often. And don't pick! Scars are something else!
Covering up the spots is next, and this I do with makeup. I know you mentioned in another thread you don't use it. That is fine..though it can make you feel less self-conscious about your spots as they do a good job at covering it up. Last year I found these two products that really work miracles on my skin. I can't imagine going without them.
1.
Sephora: Cover FX Clearprep FX Matte Foundation Primer and Anti-Acne Treatment: Primer
2.
Sephora: Laura Mercier Oil Free Foundation: Liquid Foundation
They are a bit on the pricey side, but the good thing is that they work. Worth every penny. Let me know if you decide to use these and I can give you tips as to how to apply them. I do a full face of makeup each time I go out btw, so these are not the only two products I use.
A few weeks ago I saw this inspiring video of this girl with bad acne showing us the whole process she goes through to cover up her skin. She uses a ton of products but her skin looks flawless. Still, I cannot imagine going through all that. I only do about a third of what she does (though my acne is not as severe). Here it is if you want to see:
Foundation Routine Flawless Skin (Full Coverage, Fingertips) Acne Scaring Make Up For Ever HD - YouTube
I hope these tips help!