You MUST learn how a WDH needs to be set up. Read the hitch setup sticky threads at the top of this towing forum, by BarneyS and Ron Gratz.
The weight exerted onto the trailer hitch ball from the tongue weight of the trailer removes weight from the steer axle on the tow vehicle. If you do not have enough weight transferred back onto the steer axle, the tow vehicle handling can be affected and feel like it's hard to control, even to the point of being very unsafe and losing control if improperly adjusted.
You need to be measuring the front fender height before you hook up the trailer and then after it's hooked up and the chains are engaged on the snap up brackets. You need to restore an amount of weight as per your truck's owners manual as not all trucks are the same.
It would help to know what your actual tongue weight is by going to a scale which takes 3 passes for a travel trailer. WDHs have different spring bar ratings and should be matched to the actual tongue weight.
You also need to have the truck and trailer tires inflated to the right psi. The TT tires should be inflated to the max. psi on the tire's sidewall (if load range C is 50 psi).