I think the answer depends on "why do you want to learn?". The implicit answer to that question for this blog post seems to be "to advance your career". That's a fine answer, but not the only answer.
The were two positive thing about my wife's cancer 1- She survived 2- The intense learning experiance.
P.s. You could add medical imaging to your list of interesting cancer related things to learn. It won't really help you but it is extremely interesting .
If you can get the DICOM files of your scans try to interpret them with the full radiologist report. I got started with the trial of radiant viewer¹ (it easy to use but you will probably hit a ceiling before the end of the trial) and then try 3D slicer² (it's a lot harder to use but I feel that I used maybe 10% of that software capability and I was able to cleanly isolate the tumor and make the rest of her body translucent).
1- www.radiantviewer.com 2- slicer.org