No energy after ORIF

So after 48 years of not a single bone break, broke all 3 in the ankle. I'm almost 3 weeks post op and managing the pain ok. The thing that's really driving me crazy is the getting absolutely exhausted by simple tasks. Taking a shower is now an ordeal, simple things like laundry, washing a dish.. I have to sit down and rest and I'm out of breath. I live alone so I've got to do everything on my own.

I know my body is exhausted because it's trying to heal. I know it's going to take time to feel any kind of normal. I know most of you probably had the same issue. I was wondering if anyone took any supplements or did anything that helped?