[Sagat]

Actually, I think something did indeed happen to your brain. Neuronal plasticity means that your brain prunes synapses that are left unused and strengthens those that are frequently requested. Your brain is literally being molded by what you do everyday, which is why addictive behavior is dangerous, especially at a young age.

The cold turkey was for the internet use. The method I used was to expose myself to the computer but actively resist the impulse to read bullshit no matter what. It's mentally exhausting but after the first week you get into the habit of resisting.

I still haven't completely mastered my procrastination. Like the other posters mentioned, the key is to break the task into small chunks, thereby tricking your brain into considering it to be easier.

As for meditation the simplest thing is to spend at least 15 minutes everyday doing nothing and focusing on the present moment. I suggest reading Jon Kabat-Zinn's books: they offer advice based on science and without the eastern mumbo jumbo. Good luck!