Hi Dabdoob,
Let me add to the wealth of support here.

-Don't feel stupid. What you refer to has nothing to do with the truth to the situation. Simple exercise: Hold your hands over your eyes so you can't see. You will find that you don't lose intelligence! You don't become stupid, just because you can't literally see something. It can take time to see things, the way one sees things. The way 'you' see things, or that, in relation to a specfic 'seeing' technique. Trying to see, like someone else sees, can also be frustrating. There is a self discovery to this, which is best supported by simply practicing in the way this course is given, and the way the other replies suggest and encourage.

Regarding your specific questions:
1) It is normal, or natural to feel tired doing the exercises, or afterwards. It is also normal not to feel tired, and feel energized within the exercises, or at cyclic times relative to one's exercise sessions. Often when deeper work is being done, or if one is simply out of physical shape, one can experience being tired or exhausted.

2) Hate is one word I personally have no use for. I haven't used it for many years. Words are energy, and have a charge to them. Even used lightly, it still holds a charge and potential. You don't want to let this take seed , and come up if and/or when you approach meditation. If it is that negative of an experience, don't do it. Focus on your active exercises. If you are saying this with humor, fine, but be aware of the energy pattern you create with these words.

Also, you can learn the technique of the meditation, and then work without a CD, and at your own pace. You can just breath into an area, you don't have to see it to do that. Learn from the CD, it doesn't have to be a permanent part of your meditation. You can still connect to Master Lin's energy if you like.
3) You may be experiencing a collective, overwhelmingness to remembering all the details to a number of new exercises, in a new experience. Try taking one, just one, and focusing on that. Once it makes sense, add another. Practice different aspects within a single exercise. Move around the exercise, focusing on one specific aspect. Move to another singular part within the exercise. Maybe at some point step back abit and see if you can observe or generate a few aspects at once. 'A singular focus on one possible aspect of an exercise, is fine and enough'. It works on many levels, many ways. If you are engaged with it, you are engaged with it, and 'it' is.
Regarding your comment about Self concentration being no fun, because there is nothing to do,,,, just sit and listen... and you can't visualize, so it is even less fun! I don't think 'fun' was ever a reason for me to start meditating. I think, 'sandbox', or movie theater, or a good game of scrabble, when I look for fun. Joy yes, fun,,,,,I don't know!! Meditation is a way to experience reality in an eternal sense. What is reality, what continues past this circle of life. Who am I?...Specific meditations, are specific meditations within that larger backdrop. Some ring a bell, some don't. It can be personal preference, interests , or requirements. That backdrop is there, with or without the specific meditation, lights, bells, and whistles.
Any specific meditation, can bring one to 'emptiness'.
In my youth, I moved from Minnesota to New Mexico to attend school. It took me some months, before I could actually see the desert. I missed water and green grass, the sun was too hot, my lips were chapped, and everything seemed knee height and insignificant! I missed my girlfriend back home. One day I was out in the desert, and I saw something move. It turned out to be this really colorful lizard. Pretty soon, I was seeing all this incredible life and color, in what I thought and saw, as dry and barren. I still missed my girlfriend, but, the desert came alive for me! (I did come home, and eventually married the girl!)
If you have ever been out in nature, you will find that if you sit very still and quietly, you will start to see things that you didn't see when you were just passing through, or not 'really' stopping to look. The longer you sit, the better it gets.
love,
gallen