Not a decision to make lightly. In fact most parrot owners would discourage you from doing so until you know a lot about them. They are exceedingly intelligent, need a lot of intellectual stimulation and social contact, will generally try to speak to you (depending on their speech organs it can be difficult to decipher what they're saying sometimes), are not tame, will often peck their feathers out and sometimes commit suicide if neglected (which is agonizing for them, and too many parrot owners don't realize this and just leave them in their cage all the time instead of mainly to sleep in), will demand all kinds of attention and interaction and so forth loudly, will run rings around any human socially but especially an autistic one, don't generally know how to navigate the human world without getting into danger, have large pointy front ends and know how to use them, will live at least 20 or 30 years, and so on and so forth. It's much more like having a child than having a pet from what I've observed, only a child with wings and a sharp beak. Too many people find that out too late and end up surrendering their parrot to a shelter, or the parrot ends up living a miserable life.
I would not want a parrot. I like visiting my friend's parrot. I do not want to live with one. From what I can tell, if you're genuinely committed to taking care of one, they can be very rewarding companions, but it's not at all the same as even being very dedicated towards the more usual animals. They're extremely high-maintenance and the stakes are very high for them if you do something that might be acceptable with for instance a cat (I don't mean cruelty, I just mean cats and parrots have very different needs and what a cat will tolerate may devastate a parrot). If you're interested in parrots, you might want to hang around parrot owners' email lists, but they will probably tell you what I just said and then some unless they get some idea that you're doing serious research into this. It might also be a good idea to hang around with a conscientious parrot owner (not one who leaves the parrot in a bare cage all the time, but one who treats the parrot like a family member) and see what life is like for them, if you can find one.
I am extremely devoted to the cat I live with, regard her as more of a roommate than a pet, view her as generally an underestimated animal, and do a lot of things that other people who live with cats don't do. But she does not require what a parrot requires, by a longshot.
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"In my world it's a place of patterns and feel. In my world it's a haven for what is real. It's my world, nobody can steal it, but people like me, we live in the shadows." -Donna Williams