I dont worry about the short term market news. I invest long term and send in the checks. I developed the "who cares" answers since I know it comes and goes like waves crashing over the rocks there is no point paying attention until I am 10 yr. out from retirement. At this point up 50% or down 50% would make no difference 20 yrs. later. Alot of my associate discuss their Year to Date returns but i do not because being excited about yearly returns in up markets are for those who need confirmation bias to strengthen their resolve.
A obviously
a) Yes
b) No
c) No
d) Yes
a) the longer you have to invest, the more risk you can take
b) the less time you have to invest, the more risk you can take
c) you should invest in stock bonds before paying off credit card debt
d) if you have low income, you must worry about tax liability first