Please help!!

Please help, I don’t know what to do anymore. I can’t cope anymore, i have post natal depression it’s taking over my life I’m so angry I’m crying I’m not eating, I’ve lost 4 stone I’m not me. Someone please tell me it gets better because I can’t go on like this anymore. I take anti depressants ice had the dosage increased and it’s not working, my family don’t know because I’m too embarrassed to tell them, only one who knows is my partner and we’ve split up after 5 years. My nails, my poor nails and the skin around them I’m biting them until they bleed. Please ang advice or tips to get through the day

would be really helpful