Keep at it, there is a point to everything. You will be glad for all the physical training once defensive tactics start, then its kindof like two-a-days. Heck I remember sometimes dt was more strenuous than pt. You will be glad for both when you find yourself in your first fight or footchase.
God job surviving the first week, you will be in the phase where they try to make you quit for several weeks, it is necessary but if you want it, you can make it. Just keep your head in the game and maintain a positive mindset.