How can I fix this about myself?

Basically I don't feel empathy at all and I laugh at others disgrace, specially if there's pain involved, I don't say this to sound "tuff" or "edgy" it has bringed many problems into my life and I need to change, I'm not proud about this toughts of mine but I just can't help it, just like I watch gore, etc.

Postdata: I have aspergers