Why do i hate being a mum so much?

Honestly i miss my old life back soo much it makes me cry everyday. I hate feeling this way about an innocent baby and wish she went to a loving home who would love being up all night, no sleep. I have no support what so ever, no family that live here, my partner trys to help but gets easily frustrated at her and i have to step in. She has colic and all she does is scream. I dont know what to do... this is just too much work and not enough sleeo. Shes only 3 weeks old and i cant imagine going through years of this until she is independant. I just cant do this :'( i can hear her waking up from her 10minute sleep that will keep her awake for atleast 2-3hours. I couldnt get rid of her or run away the guilt would eat me alive. I definitely do not want any more children. And no before yous ask i would not harm her. All i do is cry because she needs me 24/7. I dont know how all yous mums do this and love every minute. I cant wait until she is 3 years old and is more independant. I have just turnt 20 and feel like my life is over... even before i fell pregnant i never wanted kids until atleast 30+ because i wanted to live a little. Now i just see my life constantly at home too exhausted to do anything. I dont see a way out except time and years. I just feel so sad for feeling this way but there is no denying it... thats exactly how i feel. I hate being a mum. When do they start sleeping for atleast 2hours at a time. I cant do this... i need help. My relationship is falling apart because i am just too exhausted to even bother with him we are constantly fighting. My life is falling apart. I miss my old life and there is no going back ever. I wont be completely independant again she will always need me. But i do look at her with love and while i was pregnant i was so in love and pictured my life differently when she would be born but it is nothing like that... we are anything but happy. She wont sleep and is constantly screaming, wont let me put her down. Im suprised i can even write this. How do i learn to love this life?