Hello Dstaley,
I agree with Deb.
I too started very slow, doing all the exercises lying down as following surgery to my feet I could not stand. I had arthritis in my feet , hands, knees hips etc etc. Eventually I managed seated exercise and finally standing but my balance was poor so sometimes I'd go back to sitting. Though I am an 'oldie', just two days ago I was up ladders with electric cutters trimming the trees in my garden!
You need to be aware though, that it is not necessary to do ALL the exercises - simply do what you can manage and are comfortable doing. It is not the purpose of Qigong to cause you pain. If you can only spread your arms a certain distance then that is OK. If you can only lift your leg an inch -fine! Do not do anything which hurts.
How is your imagination? Can you visualise? If you can then finish the exercise in your imagination - See it! Feel it ! and the brain won't know the difference - it will think that you are doing the exercises physically! Try to become very aware of how your body feels. Take note of any changes however small, they can tell you a lot.
Very important is the meditation. I personally found Small Universe to be a
huge boost to me. I did it in bed every day and feeling the Qi running freely round my body was a great experience, but again, getting rid of the blockages can take a bit of time.
It took 12 weeks before I noticed a difference, so stick in , practice when and what you can and be patient. Try to cultivate an attitude of Gratitude and you will succeed.
Take care,
Love and light
Faune