Every time your bird is out of it's cage and has an accident, put the bird back in the cage. Eventually it will learn to ask to go back to the cage when the urge strikes. Even if the bird becomes potty trained, accidents do happen. A good cage design will help control most of the seed, discarded fruit and veggie mess. This is the one thing you have to learn to live with if you are going to be happy with the newest member of the family.
Parrots are very wasteful when they eat.
Talking Talking is another part of living with birds. Alot of parrots can learn to mimic words and sounds. Some species are better than others. Never purchase a parrot just for the talking ability of the species. Many parrots may never learn to talk.