Hello and Welcome Smudger
I would suggest get the brochure or look online to see what is on offer, then pick a destination you always wanted to visit. I chose Jordan as my first Just You experience because I always wanted to see Petra. Since Jordan, I have been to Andalucía, Costa de la Luz, Israel, Italian Dolomites and Croatia, Calabria, Istanbul, Troy & Ephesus and Marrakech for Christmas last year. I am going to Namibia in May and have a long bucket list ready!
Happy travelling.
Jaya