Hi Joan,
Don't worry about your age - I'm 73 and am going on my 8th Just You holiday to China in September! I've been on four long haul ones and have never been the oldest!
I was a little concerned about my age on the forthcoming China trip as it is extremely 'busy' but I'm sure I'm just as fit as most of the .younger ones and, up to now, there are two other people in their seventies going. When I went on the America's Parks and Canyons trip, three people were in their eighties!!
Therefore I'm doing these trips while I still can - and you should do the same!!
Happy Holidays!!
Regards, Pat