yes, that's what I found out from the web and from my own experience ... I shouldn't practice too much, but once I get started I don't feel like stopping. But at least this way I went through the first 3 weeks of a 6 week trainer in one day...
Then, when I start seeing blurry and I can't get even the basic chords right, I know it's deffinetly time to stop.
BTW got any tips on stoping the pain? I feel like playing again and It's kind of hard...