The circumstances of my parents meeting are very specific to the later 20th century (Northern Ireland and RAF bases), unlikely to be replicated in the 1880s, but I'll play:
Born 1889, several weeks premature with complications, >99% likely chance I'm dead within days if not hours.
Assuming I somehow survive birth I'm brought up by an upper working class family in a small west-country town which still retains some Regency nostalgia and has some decent-ish schools. There's a chance at some social mobility breaking me into the clerical middle classes. If not there are the railways, the cranes, the earthworks... If academia works out for me there's a very strong chance that I become a teacher.
Assuming I'm not killed by some industrial accident, or by the periodic flooding that afflicted the working class areas of the town up until the OTL 1950s, by 1910 I'm likely a strong supporter of radicals within the Liberal Party, and fired up by People vs. the Peers. Maybe I'm distraught to see Don Maclean lose his seat, maybe I'm more disillusioned by him and Asquith not being radical enough. In my youthful idealism I can't wait until a proper radical like Winston Churchill takes over.
On the flip side, I've very much gone against environmental factors and drivers in OTL - a hundred years earlier in a far more conformist society, I'm probably one of the Liberals who ultimately goes anti-socialist in the 20s.
Maybe I have the same urge to emigrate to New Zealand, as a near contemporary of Sir Walter Nash and the other immigrant members of the First Labour Government. This is probably an easier ambition to fulfil in the 1910s than the 2010s.
1914-1918 is going to be unpleasant, unless I'm medically exempt (possible) or in a reserved occupation (teaching perhaps, or something coal or railway related).
Assuming I survive that, and the influenza, I'm probably very disillusioned by the status quo, and really rather excited by all these New ideologies coming to the fore:
Utopia world - I visit Berlin and Hirschfeld, become involved in the early flowering of LGBT rights, and specifically trans rights; somehow by the 1930s I'm able to provide a refuge in Britain for those who need to flee continental Europe, allowing Hirschfeld to re-establish his institute in the west of England and thereby avoid the Dark Ages. I don't know if changing history beyond the personal is allowed in this challenge, but I'm taking that.
Dystopia world - I'm literally a fascist.
By 1939 I'm 50, very keen to Do My Bit and Follow The Rules. I've become more disillusioned, one way or another. I probably write a lot of pamphlets that nobody ever reads, but ultimately feel quite optimistic about the new world we can build once this is all over. I'm delighted by '45, even though I've spent the last 10 years criticising Attlee.
If I live long enough to see the 1960s, like Sideways I'm probably happily assured that the kids will be alright. I don't have time for people who grumble about the fecklessness and self-absorption of the Boomer generation.
Maybe I ask questions about the things that don't quite feel right about who I am, but in OTL the medicine and the support communities just aren't there. Quite possibly there's always a gnawing unhappiness or uncertainty that I can't quite understand, a failed sham marriage or two, and an early death at my own hands; but that's been the way for most LGBT people throughout history.
The past is a fascinating place to study and speculate on, but I really wouldn't want to live there.