Dragon & Tiger is designed to generally balance the chi of the body. As each individual practices, the D&T set generally will move them toward a more balanced state in a natural accord with the makeup of their body and chi.
There are ways to practice D&T so that you can more consciously participate in balancing your system. For example, if you want to practice before sleeping, you would emphasize a bit more the downward and inward movements of your body and chi in the set. That would calm and drop your energy. If you want to get going in the morning, you practice the upward and outward movements more.
To suggest exactly what you should do, a D&T practitioner would have to see you, get a sense of your condition, and make suggestions. For such suggestions, I suggest that you seek out an Energy Arts D&T Level 2 or 3 certified instructor.
Otherwise, you can start to explore for yourself based on the principles of yin and yang. If you want to be more yang, then you might practice in a more yang way, e.g. as you said, more active and focused. But you wouldn’t want to do that too much, as you could exhaust yourself. So if you do explore – which I think is a fine idea – just follow the 70% principle and do too much of anything at one time. Try something a bit, and assess the results in how you feel, both when practicing and in the hours/days that follow.
I’m glad you’ve enjoyed the course.