Yes, continue purling to the end of the row. The bound off sts sound like they’re for the underarms and will divide the sweater into 3 sections - 2 fronts and the back. Then put all those sts on a holder, or another circular needle if you have one.
Now you’re going to CO to make the sleeves, but they’re separate from the sweater so you use a new yarn end; when they’re done you’ll join the sleeves to the sweater body. Don’t worry about that part yet, just do the sleeves, then we’ll be here to help you when you need it.