I Took My Birth Control Pill Like I Was Supposed

I took my birth control pill like I was supposed to several days ago, but when I was going to take a pill the next day, I realized the pack(tray?) was gone. I asked my friend what to do, and she told me to just start over again with the next packet I had. (I couldn't remember what day I was on, I at least think I was on the first row.) My pills have 7 sugar pills at the end of the month, I think they are what's called "mono-phased" or something? Not sure how to translate that into English. So my question is, was it ok for me to just start on a new one from the beginning (which means I probably have taken around 6 more pills than I needed) or should I have done something else?