Think about family.

Think about friends.

Think about puppy.

Don't think about doing that thing that is constantly in the back of your mind.

Don't think about what it would be like to do it.

Don't think about how it would feel nice to just feel absolutely nothing anymore.

Don't think about how it might be the only solution in the end.

Don't.  Don't think about wanting to do it.

Don't think about who you would write to and what you would say.

Just think about puppy.

You can't have puppy if you do that.