Where do I start?

With starting a new career there is always a learning curve, but usually you get the training you need to succeed. The first two days were great, I was taken around to meet everyone, the second day we went to Ames to a seminar. My third day on the job I was left on my own, no body to learn from. So everyday I go to work wanting to impress my boss, but have to figure out on my own how to do that, so I alway wonder where to start.