Nobody can really go slow or fast in training. The trainingtime depends on every person. The first time I tried to make a Psiball, I did it the very first time succesfully. However, I've been practising Astral Projection for over a year now, and I still can't really do it. I *can* do it occasionaly, mostly when my boyfriend is with me (weird.. [XX(] ) It took me two months before I succeeded in Telekinesis, but two days for Aerokinesis. I never managed to do Pyrokinesis, though I can do a bit of Cryokinesis. I have never really had a hard time with programming a construct, except shelling. It took me 3-4 months before I succeeded in shelling a construct.
Go compare this with somebody else. You will see how many differences there are in trainingtime to succeed. Just take your time, and take it easy. Try to meditate before trying to do an exercise, it helps to calm and focus your mind. Before trying to create that Chiball, try Grounding, that may help as well. Take your time and don't get frustrated or irritated when something doesn't work out as you wanted it to.
Good luck.
Go compare this with somebody else. You will see how many differences there are in trainingtime to succeed. Just take your time, and take it easy. Try to meditate before trying to do an exercise, it helps to calm and focus your mind. Before trying to create that Chiball, try Grounding, that may help as well. Take your time and don't get frustrated or irritated when something doesn't work out as you wanted it to.

Good luck.