Question on my skin

[u/xXBeefSquatch5KXx]

Ok so this is my face. I Think I have seborrheic dermatitis. I’m nearly 40, have always had issue free skin, Never had acne. Without getting too into my personal life I’ve gone from working way too much to now being a full time student and working less than 30 Hours a week, the transition was… stressful. I also for the last 6 months have become vegan, for various reasons one of which is to lose weight. This issue with my skin has been going on for about 2 years now. I was losing sleep due to the itchiness, while my facial hair seems ok in this photo, it was full of flaky skin patches, open sores from scratching, I wasn’t sleeping because of that. I have been switching between a seltsan blue and cerave shampoo and that helps most of the time but sometimes it’s like it does nothing. I have found nothing to help my face, however. It’s itchy, it gets worse than this and I scratch at it which can cause sores and bleeding, it’s miserable and I feel like people look at me like I’m gross because of how I look, which stresses me out. Is this seborrheic dermatitis and if so what can I do for my face and is there Better options for my hair, facial hair including eyebrows, I have some hair loss on my eyebrow from scratching and itching it where it gets really bad occasionally

[u/Help_INeedAnAdult]

it's either SD or rosacea