Thanks to Marilyn's reply I have decided to save my money for a few more months and go to Europe in the fall

I have tons of vacation time saved up still and a lot of banked hours to use. A friend of mine a few years ago went to Europe for 4 weeks with Contiki Tours and loved it... it's a tour company for 18-35 year olds. I have found a 16 day tour that covers France, Monaco, Italy, Vatican City, Austria, Germany, Netherlands, and driving through Belgium. I would be flying in and out of London so I think I will also tack on the 3 day London tour which is pretty cheap, and since I'm already there I might as well! Anyways, I'm super excited and nervous about it, since I will be going alone, but what a great chance to meet other people from all around the world!