problems creating Psiballs

Hello Guys

I was wondering if anyone out there can help me with Psiballs,

I have read a few sites on how to do this, however, I have not been able to produce anything.
A lot of people have said that their hands get warm trying, my hands also get warm but I am unsure if this is the beginning stage of creating a Psiball or if it is where I have cupped my hands and they are getting warm from being in a close proximity to each other (if you know what I mean).

I have been trying for about 2 weeks now (on and off) but to no avail.

So I am here for any guidance you kind folk wish to provide, any help would be appreciated.

Also, I tend to smoke a bit of wacky, would this hinder or enhance my chances??

basic tutorial:
Keep your hand apart 15 to 20 cm
visualize psi forming, eh, where ever you want it to come from (a certain chacra or so...)
now guide it towards your hands, and let it burst out when it reaches your palms, let the energy form a ball
I usually move my hands closer together and further apart again (just 2 to 4 cm), its really easy...


- Chris