The first thing you need to do is turn off/remove the AFS (make sure you rebalance the plane if you remove it ) and fly it with out it. Don't be suprised if you find out you are back at "step one" with the flying. The AFS teaches/forces bad flying habits to the majority of the people that use it.

Once you are use to flying the plane without the AFS, remove the other "cr*p" from the plane - stall devices, etc. (remember to rebalance the plane ) and go fly it.

When you are comfortable flying without all the junk on it, start practicing your aerobatics - inverted flight, loops, rolls, etc.

Once you are comfortable doing that, convert the plane to a tail dragger and fly it until you are comfortable with the taxing, take offs and landings.

NOW you are ready to go to a second plane. Many people go to a second plane too soon, and they are not really ready for it. You will be suprised how aerobatic a trainer can be.

Once you go to your second plane (something like a 4* or Tiger II ) you will find that the practice you did on the trainer paid off. Your rolls, loops, inverted, etc. are all going to be much smoother, nice looking, and easier to do.