coccyx pain

I once severely bruised my buttocks and injured my tailbone. I went to the hospital, took medication, but even after some time, it doesn't seem to heal completely. I can't sit for long periods. The hospital advised me not to sit for extended periods and to avoid unnecessary sitting.

But my job involves sitting in front of a computer. I even looked into hemorrhoid cushions.

If I sit for just a little while longer, I feel pain.

It's difficult to tell others easily, what should I do?