Hello Margaret,
Sorry to hear you're on you own again. I've had one Just You holiday and have booked my second.
My first holiday was a sort trip to Luxembourg by coach im 2010 as I wanted to see how I would cope with it and for my second, I'm going to Canada in September! So I think it passed!,
Just you is a great way to book a holiday if you are travelling alone as you can mix with your fellow travellers and have some time to yourself it you want and the tour managers will look after you very well.
Regarding holiday choice, I think that you should choose somewhere you really want to go and take it from there.
Hope you book something.
Kind regards
Ann