Squeezing out sebum can indeed be bad for your skin as it can lead to skin irritation, inflammation, scarring, and even the spread of bacteria. It is generally not recommended to manually extract sebum or pimples as it can worsen acne and other skin conditions. Instead, it is advised to follow proper skincare routines, use non-comedogenic products, and consult with a dermatologist for appropriate treatments. For more detailed information on acne treatments and natural remedies, you can refer to the provided articles.