Huntingdog makes a very valid point about tongue weight and the rating of the hitch. Just because all the axle weights are in spec doesn’t mean the hitch is not being overloaded.
Your hitch has a rating for no WD and one for with a WD.
For example, if your hitch has 1000 pound WD rating and your tongue weight is 1200 pounds, you are overloaded, regardless of what the WD does.
It’s fairly easy to determine tongue weight. I use the 4’ beam and house scale system. Then I’ll go to the Cat Scale to get the axle weights.