Your doc gave you 7 refills???? I get 2 refills and the original script every 3 months. In fact, I believe that is the recommended way to write that script due to its addictiveness.

You become addictive to it just like you would any other addictive thing. You need to take them as prescribed. My script is for me to take 1mg every night at bedtime. It is different for everyone. If you take too much you can have a "high" and also it can be considered an overdose. You also increase the tolerance your body has when you take more than recommended. I hope this helps.