Too many spam emails

Hi . Please help .On my MacBook Air , I receive so many spam emails.  I was hoping that AVG was going to protect me from that.  I end up going through 12 steps to send the spam email to the appropriate place.  However, I can't always find that appropriate place to send them and end up sending to my xfinity at abuse@comcast.net.  Many times the spam says its from xfinity when it is not. thanks