You have my sympathies. I'm 10 weeks post c section now and remember the shock the first week at just how debilitating it was. I just want to tell you, how your feeling is completely normal.
I'd say by 4 weeks I was feeling a lot better, by 6 weeks, pretty much back to normal but still being mindful of the fact I was still healing.
My advice would be, rest. I know it's really difficult with a newborn but I'm hoping you have support at home, stay in bed, just move little and often to toilet and shower, otherwise, rest. Have your partner do anything required downstairs, eg: cooking dinner, etc etc. rest was so important to my recovery.
Second, stagger your medication, so 2 paracetamol, 2 hours later, 2 ibuprofen. (I'm unsure if you've got another stronger, if not and your really struggling, contact your midwife and ask for something, if your not breastfeeding, your partner can do to the pharmacy and ask for co-codimal)
Eat healthy, and stay hydrated. But most importantly, REST. I know there is this pressure to be back to normal asap, but you've just had major abdominal surgery, it will take time to feel better and that's absolutely fine. And take this time to just enjoy soaking up the newborn cuddles, because before you know it you'll be back to normal and have little downtime. ❤️