I agree with what Bob and Audi posted and I would take special note of their concerns of moving to quickly in your training. Some people have more natural ability and train harder and as a result can move along quicker. If the opportunity to learn the fighting set exist now, I would do it. Here is another view point on Tai Chi fighting sets and overall training in general. My training process took a lot longer, two months of shifting weight in the stance, followed by waste rotation, then steeping, I had to walk the length of the studio in a straight line and then learned how to change direction before I was shown any of the solo forms. From my point of view I would say that you are jumping a very large gap in the training. You didn’t mention push hands training. The skills that are learned in push hands are essential for fighting sets. Tai Chi fighting sets bridges the gap between push hands and free sparing. My push hands training wasn't much different than my initial training. I first trained on a heavy bag, moving it back and forth in the wardoff position, followed by trying to circle the bag in both directions. After a month of bag work I finally got to do pushing with a live person. A very slow process. The techniques learned in push hands, wardoff, rollback, press, push, pluck, split, elbow and shoulder strike are all the tools that are used in the fighting sets. A skillful teacher will change the set from time to time so that you are continually challenged with new situations. A change in the way you attack will cause a change in the way you neutralize. You learn both sides of a set and get to see how to apply and counter the same move. The set should be designed to flow continuously without hesitation from one move to the next. When performed by two equally skilled people, it can move at a very fast pace. It's been my experience that learning a fighting set has been educational, challenging and fun. Try to learn it as a form, like the solo set, so you can practice alone and imagine the opponent.