When I was younger I did travel on my own....sometimes I must admit it was to visit friends in the States but holiday to the Med I would go on my own...all though must admit it was to quieter places as not a party resort animal.
But a cruise on my own I am not sure about. I love to chat but always remember my late Nana who went with my Uncle and Aunt and said they always ended up at a table with people they wished they could toss overboard

. My neighbours went last year for 2 weeks at Xmas and I find it weird - she never goes out because of un well - but says a cruise really makes her better.
Must admit I begged Hubby last year to take me away at Christmas to a holiday cottage.....didn't work as his Mum comes to ours
every year and no he is one of five!!!!