Damaged, thinned, and ruined from scalp psoriasis

Hello, Hello, Hello!

Im a 27 year old male (today’s my birthday lol). Over the last few years, I’ve been on an intense hair journey. I had curly and wavy hair that I always straightened but when I was 21 I decided to wear it naturally. When I was 24 I had a severe scalp psoriasis flare and that was first time I learned of my diagnosis. Ever since then, I’ll have mini flair ups. It’s especially bad when it’s around my back of my head. That’s what has taken the most amount of damage every time. My hair looks thinning back there, but it looks thinning because of how much has been taken off from there due to the scalp psoriasis. I’ve noticed damage in my hair in other spots. My first thought is that I need to shave and just start again! Below are pictures of my hair freshly dried from out of shower without any product in it. Let me know if anyone has any other thoughts about what I should for next steps!!!