21 and not sure what stage I'm at

[Suxtobe21]

Hi so I came to terms with the fact I was receding a few years back when I was 17 and grew my hair out, its worked well enough up until now to disguise it but I was just wondering what stage on norwood scale you guys think I'm at and would you recommend just leaving it the way it is or trying treatment. I'm 21 btw. I've attached 3 images with my hair tied back a lot tighter than I usually do (to hide it) and a bit greasy which doesn't help I suppose