Hi Jose!
Thanks for reaching Microsoft Community. We're here to help and let's work on this together.
I'm sorry to hear that you're having trouble attaching your pen to your Surface Laptop 5. Unfortunately, the Surface Laptop 5 does not have a built-in pen holder like some other Surface devices. The only place to store and charge your Surface Pen is in the charging port on the side of the device.
However, you can search for any Surface pen holder online that may work for you.
I hope this information helps! Let me know if you have any other questions or concerns.
Greetings,
RodelioP.