Same here - I voted remain not out of love for the EU, but because of concern about how it would pan out on a geo-strategic level - however now I'd vote to leave. I still have the same concerns, but nothing about how the EU has behaved, and how other EU members behave as members of NATO, has persuaded me that I want to be in their club.
I think one of the IFS studies reckoned that with a bad Brexit we'd end up being 9% poorer than we'd otherwise be in 2030 - well, when I got divorced I was a damn sight more than 9% poorer than I would have been had I stayed married for another 10 years, and I regard every lost penny as being a bargain at 10 times the price.
I'm aware of the dangers of Brexit, big fat political and strategic dangers, not piss arse economics - but I'm also aware of the dangers of remaining in the EU given the directions it's moving in, and of doing anything that undermines the already fragile (and under attack) commitment to democracy in the UK.