Burning Both Ends of the Candle

I never realized that someone that is seventeen years old has a curfew during the fucking summer. Apparently I have always had a curfew at 10:00 and I never knew it. Also I haev recently learned that all the cars that my dad has bought are my mother's and I can not take them out too late cause she doesn't want me driving "her car's" late at night. I thought that the two recently purchased cars were her's and the rest were my dad's even though he paid for them all. This entire fight was based on me working the next day. At the end of this fight my mom said something to me and I'll never forget it. She said that I am buring both ends of the candle. Does anyone know what the fuck that means? I think she wanted to sound clever and I never realized that a candle had two ends.