7. Paying more attention to reps than to your form
The number of reps is not always the most important thing you should pay attention to. Don’t let your form and technique suffer by trying to reach the maximum number of reps possible. Control your movements, do them deliberately: Don’t let your knees bend in while your squats, keep your back straight when picking up a bar… You will benefit much more from your training when you pay attention to your form even if that means to do less repetitions or have a slower time in a workout.