Help girlfriend with punishment

Hello! I'm in need of a severe punishment. The reason for this is my faling graders in my university studies, having become lazy in regardes to exercise, missmanaged my economy used foul language and an excesive amount of lying (to parents about graders etc.). My girlfriend brought this up and we decided on three independent punishments. These are spanking, mouthsoaping, and enema. Therefore there'll be one part for each of these as well as a fourth part in which you can add anything else from simpel modifications to completely new things. So you know I live on my own but my gf will oversee/administer the punishment.