If you hold the front of the sweater up to yourself, do you have two complete, bound off shoulders with a deep V in between them? There should also be 2sts on a holder at the point of the V. If that's the case then you already have a finished sweater front and you can move on to the next section of the directions.
If that's not the case, then the directions sound like you should be shaping the second shoulder to match the one just bound off. I wonder what the directions were at the beginning of the neck shaping? Were you asked to knit about half the number of cast on sts and then turn and work back on those same sts? One edge was decreasing until you got to 16sts?
Yes, GG's right, a photo of what you have now would help.