Wish you all the best....FIGHT!
With all due respect for best intentions... this whole "fight" advice is bullshit. The poor guy is full of cancer, likely mestasteses from the lung cancer. He has emphysema and COPD.
There is more peace in accepting the inevitable and coming to terms with it for a thinking man like Petzel.
The fear of the inevitable and the what-if of an afterlife is so delusional and causes us to always live for tomorrow...instead of today!