Hi Jayr, don't hesitate any more. JY hoidays are fantastic, it is a very safe way to travel alone. you definitely will not be the oldest. I have been on quite a few solo holidays, and the age range usually varies from 40s to 80s. I am going to India in two weeks time, and when I asked how many people were booked on JY told me 25' ages between mid 40s to 80s, Anyway, age doesn't matter on these holidays, you are going with like minded people, and if it is a large group you don't always click with everyone, but I have found most people very lovely and friendly.
Go on, do it, younwon't regret it. the trouble is, you might get the bug, and spend all your money on holidaya (as I do!). Xxx