please help, im scared

I've been feeling up and down for a while but now I feel down more than up and I've lost all interest in anything, hate the idea of staying in the house, tired all the time and worst of all I have very little intrest in my baby but I'm scared if I ask for help they'll take her away from me and I need her, I love her but I'm all on my own I'm 20 no man and my first time managing a house on my own. please any advice would be greatly appreciated. thank you

p.s. my baby is 11 months old