So, I believe that doing the exercises before my self-healing opens possible blockages in the liver, and head (C7, lower part of the head, top of head, 3rd eye, and throat). Does sit make sense? Or do I need to do something else?
Sounds like you've got your bases covered. That's a great start and are adapting the system well. Just let go of any "expectations" you may have as well as doubts, trusting the Universe and the Master's Energy--which will enhance the process.
In other words, if subtle ideas like "this is taking too long" or "not what I expected" or "why doesn't this work the way I want" just let em go, trusting in the completion of what you want to accomplish and you'll go far.
Also, Level 2 is about self-healing as much as healing for others, it's just more 'directed' in the aspects of "outside" healing. Sometimes we also experience reflections from other people...sort of like when you "heal the good side first"--I've noticed that you can heal someone else, and you'll heal in that area by helping them.
For instance, find a person (friend, family, etc) and do the healing for the eyes *for them* do a good job not worrying too much about it (pretend that it's them and not you, whose eyes you are healing) and you'll you be surprised that your own energy transforms as well....
At-least try it and see....

~Z