In what ways should I prevent this?
I think no. But by knowing that it can/does/will happen you take action in knowing what to do when it does happen. You do not have to be "one of those guys". You at least of read the articles and since you have the knowledge and can correct the situation before you get into a downward spiral.

Make sure to take a break. During the first bit it will be hard. The "high" you are on is fun ( We all liked it ). Some of the more "advanced" players can get more into the minimize aspect. I have not played online to hit "hardcore" lows yet.