Fine with Leo Barry. Difficult to get over, but my parents were patient Bloods so it was an intensely bittersweet experience (plus seeing a local team which I grew up watching every week win the flag). Losing the 2006 QF at home with that Mickey O celebration was brutal, but the flag 3 weeks later put that and the remaining 2005 demons to bed in beautifully poetic closure to that period.
I have also tended to see the 2007 Semi-Final as a reprieve from a likely embarrassment the following week, and the surrounding misery of the 2007 off-season means the on-field straight sets memory (when straight sets was still rare) tends to get dwarfed a bit. Plus we had just won a flag. Missing finals in 2014 I quickly moved on from as well, after watching Port leap out of the blocks against Richmond (and the sheer novelty of Priddis winning the Brownlow not long after).
What still irks me is those 90s away finals which should have been home finals. Whilst I am long resigned to the Bombers inflicting something despairing to us periodically every few years, losing to Carlton in that 1999 SF was especially loathsome, and ultimately was a sad goodbye to that great side. 1996 was also a winnable flag.
That said, as an aging West Coast fan who has experienced success, and also has the perennial Swans as a 2nd team, I've been fortunate, and tend to be circumspect and relaxed nowadays. I moved on from 2015 enormously quickly. 2011 is the last time I didn't have a team I greatly liked in the decider, so recent GFs have generally been excitable affairs, and even a blowout like 2014 was a case of an awe-inspiring performance.