I'm not sure about what job you have now but I would defiantly see this as a sign, Its not often that vets go looking for people its normally the other way round! About not knowing anyone, It would be a great chance to meet new people and they are guarenteed animal lovers so you will have something in common with them from the start. I was so nervous about my job when I first started because I was so shy but meeting new people really boosts my confidence!