@ max_headroom
Obviously this is all too much for you to deal with, if these were my parents (deceased) I would certainly be spending time explaining what to do.
So I won't waste any further time (yours or mine) on it.
Many forum members are of a certain age and try to help others much younger. One such forum member is bob3160 who spends a lot of time either visiting seniors computer clubs around the USA or doing remote presentations for them.
Just because we are seniors, doesn't mean we have to stop learning.