A heavier number is only useful when you know what changed. If your stance, range of motion, or tempo varies wildly from one set to the next, comparing sessions becomes difficult. Give your repetitions a consistent starting point. Good technique is a skill you practice, not a box you check once and forget.
Choose a setup you can repeat
Before the working set, take a moment to arrange your stance, grip, and equipment. Use a load you can manage through the movement you intend to perform. Familiar preparation can make it easier to notice when fatigue begins changing the exercise.
A brief note can be surprisingly useful: a machine seat position, a bench angle, or a cue that helps you control the movement. Record details that solve a real problem for you. There is no need to turn the workout into a technical essay.
Give every repetition the same job
Move through a comfortable range with control instead of using momentum simply to finish the set. The right range and setup depend on the exercise and the person. If you are unsure about a movement, a qualified coach can help you find an approach that fits.
Muscular effort and sharp pain are different experiences. Stop an exercise that causes pain rather than treating discomfort as a challenge to win. Persistent symptoms deserve appropriate professional attention, not an improvised fix between sets.
Earn the next increase
Review the quality of your recent sessions before deciding that more weight is the next step. Sometimes the useful improvement is a steadier repetition, a clearer setup, or more consistent work with the same load. Let the training record reflect how you moved as well as what you lifted.