Sorry to hear, OP. Suffered a lot from psoriasis in my youth, being bullied a lot also. Had severe symptoms on my head, I smelled after tar-soap and the oilment.

After my teens my conditions improved a lot. Mostly suffered it on my head and genital area's. Nowadays only nails...

I used to have a good oilment which helped against itching. All the best for you and hopefully your condition improves...