I'm not here to talk you out of return the product if you decide that's the right thing for you.
I'm not an expert, but I'd say that a lifetime of anything would take more than a few days of level I exercises to clear out.
The exercises, help to open your energy channels and restore balance to your system. Unfortunately it's not a life-time oil change. The energy blockages can re-establish themselves. If you check the material you'll find the six sources of blockages as Master Lin has identified them.
Another question to consider is how far along the good-better-best road have you been traveling. How much time have you given to SFQ, when have you done it. Why not try some of the sitting meditations too.
If you check the forums archives you'll see evidence that I wasn't fully comfortable with my technique for at least a couple of weeks. Okay, I still dwell on it at times.
I did feel things during the first week, but I wasn't and haven't been cured of all my ailments; be they mental, emotional, spiritual, or physical. I suspect that my whole life will a journey approaching and maybe maintaining a level of complete health.
I feel confident that if you embrace SFQ you will feel the benefits.
You are perfection.
Iam2 
