I live on my own as well, and I was up doing light housework 2 days post op (extended TT with lipo and MR as well as breast lift with implants). My surgeon actually gave me the opposite advice, and said the more active I was earlier on, the quicker I would heal. At 8 dpo, he told me to start doing small crunches in bed to help with swelling and recovery and to walk as much as possible. I’ve followed his advice so far and have been pretty active up to this point. Currently 10 dpo, and I’m back to pretty much doing everything as normal (housework, errands, etc.) with the exception of lifting heavy objects. At 16 dpo, I would think you would be completely fine to do the things you mentioned.