Perhaps you could find some links to prove what you've just said? You've never managed it before when asked, usually 'cos you make stuff up & there are no links to support it. I really can't wait for your answer. Let me give you some starters for 10:
Oil: The largest field ever was found just before IndyRef2. The find was suppressed by the government and all rig workers stood down for 2 weeks until after the vote.
Education: As good as any education system in the UK. No fees for students (as it should be - it shouldn't have to be bought). A key difference in Primary schools is that whilst head teachers are in charge of budgets, in Scotland, all staffing is paid by the Region. What this means is that in england, if you want the best teacher, who's expecting higher pay, you have to dig into your budget for books etc. to employ them. In Scotland, your budget for books etc. is sacrosanct. Outcome of this? The best teachers can be employed by a school with ease in Scotland, but in england, NQTs (newly qualified teachers) or TAs (Teaching Assistants) are generally employed first, and the better, well paid teachers struggle to find a job. This is not an opinion. This is fact. My wife is an ex-Deputy Head who has taught in both countries, & her sister was a Head teacher in Scotland. I have also spoken to a number of english Union leaders in the subject & they are in solid agreement that the Scottish system is best in this manner & significantly aids better education.
Health: I have no idea what you're talking about for health, nor, I suspect do you. I do know that the population of Scotland are delighted that none of them have to pay for a prescription, unlike england, and I am not aware of anything outstandingly bad compare to other parts of the NHS (note: 'National'). I'm sure they would have been held to account if there was any lapse in the healthcare requirement of the day.
Economy: I'll be honest, I don't know much about the economy, but in relation to EU membership, I'm sure we could more than meet the requirements if the likes of Malta, Latvia, Lithuania etc. can manage it. And lets not talk about Greece. Or Italy. Or .... the list goes on. I cannot wait for you to give me a masterclass on the Scottish economy. But I know it'll be a long wait as you'll be scratching through the Sun looking for an appropriate link. I suggest you save yourself the effort. You won't find it.