@Terri154 Just read your listing... Looks a great place for a junior doctor on their 4 month rotational jobs post-qualifying..... And when the tourist market starts up again, you know a 4 month-er will be leaving, so not long till you can host tourists again! (Trouble is, the docs' rotations start August, December & April, so you've just missed the early April starters.... That's the case in England, I don't know if Scotland is the same...)
I would be looking at longer term rental in your position, preferably to professional people. Are you aware of the 'Spare Room' website? Good for letting furnished properties, especially if the landlord pays the bills and the tenant pays an 'all found' price. The site contains lots of legal advice & help in letting/renting, even if you don't end up advertising thru them. And it's free! (Using the basic service.) Needn't cost you a penny!
Or, you could get your details on sites/lists for hospital staff/key workers. I'm on one with 'Cumbria Tourism' - one enquiry, no follow up. Local hospitals may have their own lists....
Had you thought of offering key worker accommodation thru Airbnb? You would be eligible as your place is not shared.