I voted against independence the first time and will do the same for any future referendum. NS talks about joining the EU, keeping sterling etc, but she conveniently leaves out how that is possible and any timescale required.
Because of the Barnett formula, the Treasury provides about 85% of our total budget. From figures in 2019, Scotland continued to outspend other UK countries, except for Northern Island. (My relatives and friends in England are astonished that we get free prescriptions).
Those putting their hopes on taxes from Oil & Gas don't realise that we have ageing/depleted oil fields that are getting more difficult and expensive to work. The average age of our oil rigs is 29 years compared to 4 years in some countries. New North Sea fields require significant investment, but there are other parts of the world where the returns are higher, plus there are issues regarding the use of fossil fuels.
Regarding whisky, Japan is now producing award winning whisky, and Korean soju is the world's most consumed spirit, so the growth market for Scottish whisky is not assured.
If you already know all this OP and still feel the same about independence, then use your head a bit more. The people I have spoken to who are in favour of independence admit it's a heart over head thing because they know that independence will mean higher taxes and they are willing to accept the sacrifice.