When you begin any workout plan it is very common to walk into a gym and just start going from machine to machine without really knowing sets, reps, techniques etc... This is why many people don't stick to their New Year's Resolution to get into shape. If we don't see results, we assume that those that are muscular or leaner are genetic freaks. What we must remember is that everyone is made up differently and trying to follow someone else's program might not work for our body style. Having a goal set prior to beginning a workout plan is absolutely necessary in order to succeed, however the catch is that is has to be your goal. What is it that you would like to accomplish and when? Be realistic in your goal and time frame. Are you hoping to run your first race this summer? Would you like to step on stage in a bodybuilding or figure competition for the first time? Maybe your goal is to lose 10 lbs and lean up so you can grab your bikini and feel comfortable in it instead of wrapping a towel around your waist all summer.
These are things to think about so that you can reach that goal and then set a new goal in order to motivate yourself to continue with a healthy exercise and nutrition program. It is not going to happen overnight but I promise if you talk with someone who is knowledgeable in fitness and nutrition and can help you set up a program that will work for you, you will not fail!
Getting started from scratch is the hardest part but the sooner you get started, the sooner you will reach your goal and the happier you will be.