I have been thinking about your post and although knowing more about your parrots lifestyle under your care would help a lot in giving you good advice about training I am going to give you two links or perhaps three that should help you a lot. The first link is describing the way that I start all of my birds off with and would use for young birds as well ( all of my birds were adults when they came to me). I am giving you the links to conserve on typing time as I am not a fast typist. Here is the first link.
viewtopic.php?f=11&t=15840 This second link was Written by Michael, the forums owner and it picks up where the first link leaves off, so please begin with the first link and then move on to this second one which is
viewtopic.php?f=11&t=227 The third link was also written by Michael and it is his complete guide to basic training for parrots.
viewtopic.php?f=24&t=3637 At this point, I will say that I do not always agree with all of Michaels methods for training, but that is something that you will have to weigh and decide on for yourself.
The first and primary thing that you need to do is to gain your parrots trust, if it does not trust you then it will not bond with you and without this bond you will not get very far with any training. Training can help to deepen a bond once it has been established but training can not create the bond, only trust can do this.
I hope that this will help you.