about ‘Addicted to the cure’

people at school didn’t understand my feelings I wanted to show by my collage called ‘Addicted to the cure’ (previous post shows it really well). But I had hope my Culture teacher understand it and give me good mark. I had hope for -5 (in Poland we get marks from 1 to 6).

When my turn came I took my collage and walk to her desk. And…
She told me I didn’t put my heart in it and it didn’t show anything. I thought WTH.?! She told me to tell her the story, how my ‘art’ born.
So I told her that during last infection I have been staying at home, taking a lot of pills… And that it just came to my had.
So she spoke:
‘4’ I looked at her
‘Why?’
‘You didn’t put your hart inside and it didn’t take you a lot of time to do it.’ I felt tears in my eyes.
‘I was doing it for 3 hours. And the background isn’t from one piece of paper.’
‘Show it to me.’
She looked, though and said.
‘+4’
I was like ‘F*** off stupid woman’ but of course in my mind. she hates me enough. I don’t need her to hate me more than now. -.-‘

why no one understands artists?
even other artists?
 

was my collage so bad to just give me +4?!
Other students who got +4 had so bad works. just few pieces of newspaper put on coloured paper. -.-”

I am so upset.