Hi Mae
Welcome to our happy band!
As the others have said, there is certainly plenty of options to choose from. First you need to consider whether you want a long or short haul trip, how much leave you can take (assuming you aren't retired), how much you want to spend and whether you'd prefer a touring trip, taking in lots of places, or sticking to a more relaxing pace in one destination.
My suggestion, if you are up for a long haul trip, would be 'America's Golden West'. This is a cracker, it was one of my first and I know many people who have also done it and loved it. It is also a good way to build your confidence travelling because it is an English speaking country and, other than the ESTA, you don't need to worry about visas, jabs and malaria pills etc.
Whichever you decide on, there are bound to be fellow JYers on the Forum who have been before and can offer you their tips and Julia will always be able to answer your questions from the Company's side. If all else fails and you can't decide, close your eyes, stick a pin in the brochure and have an adventure!
All the best
Mandy