3. One Step at a Time
If you're able to look at Dylan without saying any negative or harsh comments, it means you have made it. Not yet.
To start with a thought that might make you happy and even smile, like Taco Bell, and to keep the thought in the back of your mind while talking to your students. Who cares if you're paying attention or not to what the kid was saying, because it is the first step to a happier (on the outside) life!
Find more things that bring happiness to your life, whether it was when YOU USED TO verbally destroy your cross country runners or track and field athletes or your childhood where you killed chickens...
The next step is to pay attention to what students are saying while thinking of something which makes you happy (this may take practice because some students can be severely ignorant).
4. Pass it On
By this point you're able to criticize and leave rude remarks to others in your head! No more arguing about if the Lion King and Frozen were similar because they aren't and who cares!! No more calling people out AKA Dailyn if they aren't paying attention even though they were just trying to find their notes!! That poor Dylan Litreal who is used to getting verbally smacked by you, but he can kiss that goodbye!!
You being nicer could spread to those who are in need to show respect to others as well. Dylan Newport might stop talking about JohnnyXC 24/7, I might be nicer to most people, but most importantly, everyone might stop hate themselves a little less.
Seeing this massive change in your life could bring you gifts and compliments from your students based on the way you change your behavior. It is not hidden... we all know what you like, so it'd be easy for us to get these things for you.. based on how easy you are on us.