Thank you everyone for your amazing advice!
I tryed, and tryed and tryed!
I even woke my mum at 1;00 saying i can't sleep knowing that i have to eat animals.
So she yells at me
" OKAY YOU CAN GIVE UP COWS, PIGS, SHEEP, EVERYONE ANIMAL EXEPT CHICKEN AND FISH. "
i think that's better than eating every animal. But i wasn't done, i said " THIS IS MY DESICION MUM YOU CANT TELL ME AFTER 5 YEARS OF NOT EATING MEAT, YOU CANT SUDDENLY SAY NO MORE. I WAS FINE. I DIDNT GET SICK, I DIDNT GET ANYTHING "
So after that her last words, " End of discussion " ( that's what she thinks

)
and she said i can only have chicken and fish... but everyweek i only have chicken once a week, then next week a bit of fish.
Guess thats better than nothing..
I think i will just pick around the chicken.
Or refuse to eat meat.