I am well used to snow, living up in the Derbyshire hills, near Buxton, which is well known for being cut off and record breaking snowdrifts ....but .....yours are definitely bigger snowfalls.
It does sound as if you are going through a rought time on your farm, and hopefully things will get better. I know your prices are more expensive for things up there, due to the fact it has to travel to get to you. And if you send for things through the post, you pay more for delivery etc.
Is this your first winter on the farm? Did you not have any farming experience at all before moving up to Scotland? And do you regret leaving your guest house? The weather in Torquay, and indeed the place, must be a world away from what you get where you live now!!!