Hi, i am an esthetician with many vegan and vegetarian clients.
I have seen first hand what being vegetarian with out taking supplements can do to your skin. In older vegetarian clients I have seen these repetitive traits, sunken eyes, dark circles, and sagging skin. The sagging is very common and every vegi client I've ever had has had an elasticity problem. There skin has no/very little retraction. Like when doing massage there skin should stay were is is with little movement, but it just stretches all around and retraces abnormally slow.
But I believe your problem is a lack of lipid barrier, your stopping your skins natural layer of protection by using the clean and clear. It's inflamed papules are consistent with rosacea but if the cream doesn't help then it is just exposed un protected and dehydrated skin. Some skin care brands I'd recommend for you are, pai a uk based organic line designed for extremely sensitive skin. Or something I personally use and which is Astara, they are a raw vegan line that uses antimicrobial essential oils to fight acne their blemish prone line might be to harsh for you but I recommend their basic care kit for normal skin then buy their blue flame purification mask, I think the scrub once a week in conjunction with their normal skin care products will help with the scaring and will help you shed dead skin cells which is always a big help with any kind of break outs, wether they are induced by oil or oil dry skin, I believe these will change your life and skin immensely, and only wash your face at night rinsing with cool water in the morning is more then enough for your your skin over washing is bad as well.
I really hope you take this into consideration it really will change things for you from what I imagine your skin is like from your description.
For future skin problem avoidance I recommend omega3 supplements
you need lipids to protect you skin from free radicals dirt and dribri.
Good luck I hope this helps you.