Why do I always have the urge to lose something valuable?

When i’m at a cliff edge, i have the urge to just jump because i can. When i’m walking across the bridge with my phone i have a sudden urge to just throw it down to the water below. When i’m sitting by the fire i have the urge to throw something valuable in just because i can but i just stop myself from doing it and live my life.

What is this called? am i just insane?