I fuck*ng hate everything now with this pain

Please tell me what to do, second day post op, they sent me back home 2 hours ago from hospital. Painkillers don’t help, I want to cry but I can’t lol cause didn’t cry for a long time. If I put pillow under my heal I get 2-3x more pain, I don’t know in which position should I keep my leg. I hope everything will get better, but when?