Oh, dear, Maureen! It really isn't a horrendous website! Just takes a bit of getting used to and, because the Editor needs to keep an eye on what is posted, anything which you write after about 5.30 pm or over the weekend has to wait until she gets in the following or Monday morning.
There is no need to be nervous about the holiday - everyone has been a first timer at some point and JY does take care of you.
As to your query about your holiday in late May, you would probably be better posting another query in the "Say hello to single travellers" section, with the name of the holiday and the date you are going, where it would stand out. But please bear in mind that, although a lot of folk look at the Forum, not everyone posts onto it and (from my own experience) not everyone who goes on a JY holiday even knows about it, though we are all trying to make it more widely known. So if you don't get a response, don't be despondent - just look out for the Just You greeny-yellow/yellowy-green luggage labels at the airport and make sure that yours is visible on your hand luggage.
Whatever response you get (or not), do have a lovely holiday. I'm going on this one, too, but not on the same date as you.
Ann