Didn't work last time in Scotland but if you believed what was being said at the time you would have thought it would at least be close.
Last time they hadn't had a referendum where immediately after they voted to stay the govt backtracked massively on the promises made to them and turned into a conversation about what it meant for England. Lib Dems were in coalition at the time and at the time they polled well in Scotland. Now it's full-on Tory and looks like remaining that way for some time to come, not to mention that this shower are totally incompetent, self-serving and South-East/Londoncentric. Scotland overwhelmingly voted to remain in the EU.
The GE prior to the independence ref the SNP had 6 seats and got just under 500k votes. The one after got 56 seats and nearly 1.5m votes. 2017 they lost a bit but 2019 they went back up to 48 seats and 1.25m votes.
There is a part of me right now that would love to be able to claim independence from the dickheads in Westminster and I'm English. So god knows how I'd feel if I was Scottish.
If you think the situation is the same as last time then I think you've got your head in the sand.
The irony for me is the person most likely to put Scots off independence is Sturgeon, while the ones most likely to make them vote to leave the Union is Boris and the Tories.