Need help

If you are not sure about both groups then first prepare all subjects of Gr I. That way at least you are fully prepared for one group but do it as fast as you can. Then if you have time start preparing for Gr. II. But DT & IDT are time consuming. I am not trying to discourage you but you must know the reality. Important thing is not to worry but start studying as many hours per day as you can. Don't worry about how you are going to complete you studies. If that thought keeps coming in your mind then you will not be able to study. All the best!