First time using a non-Mac trackpad or something? What you describe is how they have worked for nearly 2 decades. The button is under the bottom edge and the trackpad pivots from the top. Clicking will always more difficult as you move towards the top. And should be nearly impossible near the top. Try opening a door with your hand near the hinge. It's going to be significantly harder than pushing out at the knob.
First time using a non-Mac trackpad or something? What you describe is how they have worked for nearly 2 decades. The button is under the bottom edge and the trackpad pivots from the top. Clicking will always more difficult as you move towards the top. And should be nearly impossible near the top. Try opening a door with your hand near the hinge. It's going to be significantly harder than pushing out at the knob.