The head must rule, not the heart.
In all practicalities, Scotland would not earn nearly enough money to cover the welfare system in place or any of the public sector employment. The welfare system in Scotland costs £104 billion per annum, with 20 billion approximately being the cost of the NHS. Scotland has a GDP of between 1 and 10 billion per year -depending on which sources you examine - which includes oil royalties.
Without the trade and only 2 million tax payers to cover the costs it is an ill-conceived idea to consider independence. It is very likely that without the Royal Mint, Post Office, Pensions and EU membership that Scotland would survive 10 years without approaching the UK to rejoin.
On a post script note, it is worth noting that 80% of the employment in Scotland is in the Public Sector which means that some employed in the Public Sector now, would lose their jobs. All pay would be decreased with a massive surge in taxation.