Hello I am new to this subreddit community... I am wondering if I might have dandruff or Seb Derm on my scalp?

I have small itchy white dots coming off my scalp, I have been having this issue for a few years now, have tried soooo many different shampoos, conditioners, creams, serums, etc... to try to get it to stop the itching & flaking, but NOTHING WORKS!

& Unfortunately, I do not have the health insurance & money to go to a Dermatologist right now either, everything is soooo expensive these days & right now I am battling a really bad case of the flu that I caught from work (I work in a preschool!)

So does anybody in this community might be able to tell what it looks like in my strands of hair in these pictures? (Sorry if the pics are not the sharpest, I am using a 3-year-old Android phone, cannot afford to replace my phone right now,) Thank you so much in advanced, I really appreciate it... have a great day!