City Slicker
MyPTSD Pro
Maybe to begin with, something I can do at home would suit...
Walking is a fabulous weight bearing exercise so it's really good you are able to do that.
We tend to underestimate the power of walking when initially starting an overall fitness plan but it's really important to take the time to let your body get used to the weight of carrying itself before moving into something more challenging.
If you feel ready to move on and you want to do some weight resistance at home and you can afford it, you can get thera-bands - they are like giant elastic bands only one long piece rather than joined, and you probably have used them with your physiotherapist. You can increase the resistance as well to give you a greater workout as you get stronger.
There are lots and lots of videos on youtube that might be helpful in continuing your plan.
Bets wishes on your fitness journey.