Hi Nacho,
You can always revisit level I active, and should, if you injure yourself, or need that focus on self healing. It is an asset in your qigong bank. Small universe is also something you should keep doing. Your meditation is very important to keep up. As the new exercises can be done in a shorter time, you can gradually get into them. Try to keep a full practice going, of active and meditation, as you gradually assimulate all the new technique and data. Whatever time you spent before, keep it up. Don't drop it to read or watch the video. Do your exercise session, or meditation, first, then spend a short time learning new information, if time is limited. 'Ground yourself in your self practice.' If you did level I active for an hour, you may want to extend the times in level II active, if you so desire the active exercise. It is easy to extend times on cloud hands and 10,000 hands, right away. A bit harder in sword fingers and thunderpalms, due to holding up your arms. I have had times where I really immersed in 10,000 hands, for an hour or so. It is a wonderful exercise, very spiritual, but with full physical awareness, and wonderful expression/relationship felt, to the expanse of the universe. You have alot more choice in how you exercise, with both levels at hand. I would still suggest a consistant routine, as opposed to changing it alot. Find your choice, then stick to it for awhile before you change it, if that is the case, or tune in to your routine by trying things, then get back in the saddle and do a consistant practice. Don't get lost in all the data regarding specific healing techniques. Your state of being , through your self practice, is very important. You will be more effective, as a 'healer', if you keep up your exercise and meditation, and assimulate the new data from that position.
love,
gallen