HELP ME!! WHAT SHOULD I DO?

I have been wagging school a lot recently and my mom called me one day saying she got a call from the school that I wasn't present. I have to speak with the school coordinators soon and I need any excuses. I've already told my mom I DID go to class so I can't say I was sick or was at the doctor's. My mom is really strict so if I tell the truth she'll go crazy. And PLEASE don't answer asking why I wagged or reasons why I shouldn't, I know what I did was a wrong and it won't help.