Aloha trailofthebear,
You can be practicing the Level Two healing techniques while you are learning the Level One exercises and meditation.
As for the exercises in Level Two, it's recommended that one stay with those in Level One until you make a shift in your physical healing.
SO:
Do the Level One active exercises (sprinkled with mediations about a fourth of the time), and learn and do the Healing techniques from Level Two as soon as you'd like on friends, animals, plants, etc.
In the beginning, most tend to be able to visualize things we have a strong mental memory of. To build a memory of energy or light, spend time (safely) looking at fire, lights, etc. close your eyes and see it, then look again.
Much Love, Shawn