My best friend committed suicide 😔

I really don't know what to do I don't know how to transition from seeing and talking to her everyday, to never seeing her again. I didn't think it would happen so suddenly. I got sent to the counselors office and they told me that she passed. I immediately burst into tears. It sucked having to sit there for 30 min crying; my parents were in another town. I don't know how to deal with this. Wish me luck..