54m here who lives alone and had my RTKR on May 8. I had a friend stay with me the first 4 days and was able to shower, change all my clothes and get on and off the bed and couch by myself on 3rd day. I pretty much did it all by myself. I’ve got a small homestead and needed help with my gardens and chickens and walking my dog the first week and been on my own since then. I prepped all my meals, coffee and refilled my water bottles, got icepacks and everything I needed on day after the surgery. One thing that made it easier for me was attaching a basket / bag to the front of my walker to carry all my stuff. I used the walker until day 5, and used a cane for the 2 weeks after that. Being only 44 I’m guessing you had an athletic past, which in my experience makes the recovery so much easier than people needing the TKR due to being overweight or being elderly and the knee just being worn out. You are fine OP. See if you can get a friend to help the first few days. I spread the needs between a friend and my neighbors who I have great relations with. Good luck OP, you got this.