Go Slow, Have Fun
So it goes with Chi Kung; hold it lightly and have some fun. Go slowly and practice these moves the best you can to make it your own. I highly recommend studying with a teacher, reading books, and watching instructional videos.
Be easy with any spiritual practice, because it is possible to overdo it. One can do these practices in a way that can hurt the practitioner. At the same time, in the long term, I believe that any risks associated with learning these practices are outweighed by the benefits of slowing down the aging process, balancing the hot and cold in your body, thinking more clearly, uniting various energies inside yourself, and bringing your energy back into your body.