Horrible Rubik cube...... AARGH!!

You know something? This morning I played my rubik's cube for 45 rounds( am I crazy?) ,and you know what?: .................................My right hand CRAMPED!!! It's such a big pain! i can't even play my piano! Luckily my hand recovered now, or I can't even type this post out! heheh! I played my rubik's cube from 8am to 9am, thats an hour, man! This is the first time I practice my rubik's cube for so long. Anyway, my best duratio is 1minute 20 seconds, and the worst duration is 2 minute 5 seconds......... I still need to improve myself.................