Welcome Lesley 
I have my 9th JY  tour booked for May. There is much information to be gained by looking at the postings on here, but just a couple of things. 
It is a VERY safe way for ladies and gentlemen to travel. 
More ladies than men per tour 
Age range well what can I say 20's to 80's dont panic it does work really well. 
You get so much to see and great people to chat with. 
Have a look through what is on offer and go for it..you really do not have anything to loose. 
I have been to many places, 3 USA tours Austrian lakes, Poland and the Tatra Mountians, Kenyan Safari, Hong Kong and New Zealand.Tuscany... 
If I can help just ask...I am away for 2 weeks so I am sure the ladies and gents on here will look after you. 
Cindy