I think this song is talking about how a guy starts remembering all the problems he caused and arguments that arose form them, hence "Memories consume, like opening the wound." He talks about how he has a tendency to make problems, and tries to "break the habit" of causing them. "I paint it on the wall, 'cause I'm the one at fault " refers to how he tried to tell everyone that he understands what he did and realizes that HE was the problem, not someone else. Finally, he makes problems about the most random and insignificant thing, "I don't know what I'm fighting for, or why I have to scream."
I think this song is talking about how a guy starts remembering all the problems he caused and arguments that arose form them, hence "Memories consume, like opening the wound." He talks about how he has a tendency to make problems, and tries to "break the habit" of causing them. "I paint it on the wall, 'cause I'm the one at fault " refers to how he tried to tell everyone that he understands what he did and realizes that HE was the problem, not someone else. Finally, he makes problems about the most random and insignificant thing, "I don't know what I'm fighting for, or why I have to scream."