Sorry for your loss.

It's hard to know what to say, because each person is different. I hope this old link helps a little https://news.ycombinator.com/item?id=27323430 (263 points | May 2021 | 95 comments)

In particular there is a link to "The wave": https://old.reddit.com/r/Assistance/comments/hax0t/my_friend...

And "The Box": https://news.ycombinator.com/item?id=27325968

I also like https://www.astralcodexten.com/p/idol-words that is a fun story with a interesting discussion about death in the middle.

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Back to your question: Too many career changes are bad, but no change may be bad too. I think the AI doom scenario is exaggerated, there will still be plenty of task to translate human level requirements to computer level implementation, nobody is writing assembler now but there is stil plenty of work. But nobody can be sure about the future.

How easy is to transfer there? How many courses do you keep/lose? Is there some subbranch of the degree that share more curses?

[Hi from Argentina! Transferring here is easy, but my guess it that in a similar situation here you would lose like 1 year. Probably a good trade-off if you really want to change and your family can sustain the cost. Sometimes a mandatory course for a degree in an elective course for another so it reduces the delay.]