I am another clumsy person, always walking into things and falling over.
When I was in my 40s, I read an article about dyspraxia. Dyspraxia is to highly coordinated what dyslexia is to fluent reading. I was looking for help for DS who had my problems and more.
We saw a private practioner as, at the time, the NHS did not recognise the problem. I commented to her at some point that it must be genetic because I has similar problems. her comment was 'I had noticed'. I then had the same exercises therapy that had so helped DS. They helped me too, and both of us saw an improvement, but we are still both cackhanded and clumsy.