I know some manufacturers use the same axle pair for multiple TT's in the same line (like my maker). So you end up with the same max TT weight, but different cargo capacities by model since they each start with a different dry weight. This frequently works against longer bunkhouse models.
So I looked up your TT's specs and even with a full tank of water, you should have 1,500 lbs of cargo capacity. Is your daughter an athlete and brought all her weight training gear? Did you pack enough dutch ovens to feed a boy scout troop?
Mostly kidding because I know we're roughly 1,000 lbs over dry with 37 gallons of water for just the 2 of us.