Aids for Preparing Food

Hello.

I have Scoliosis, Osteoporosis and fractures in my spine. I also have Osteopenia and Osteoarthritis in my hips. I am finding it difficult to stand or sit to prepare vegetables because of the pain in my back and hips. I have tried a perching stool but this just adds pressure on my spine, fractures and hips and causes me more pain, so I cannot use a perching stool. I was wondering whether you can offer any ideas of some aids to help me prepare and cook food to make the process faster and easier.

Thank you for any help.