Accepting your mortality sets you free, period.
Being a JW as a teenager in the early 1970s offered me an irresistible excuse not to deal thoroughly (or responsibly) with (1) the thought of my death and (2) and the thought of my life, i.e. caring for my own future -- looking back I wonder if this was not my deepest motive for believing (or pretending to believe) the WT stuff in the first place.
It took me quite a few years before I admitted to myself that I was not really interested in "everlasting life" (at least the JW brand) either -- and that death, pace Paul, is not an enemy, but that which gives life its value.