Pets of any kind are a wonderful thing for bipolar peeps.
When I lived in Florida I have 29 birds ! yes 29 and everyone had a different personality. If I was home they were all out of there cages.
Birds will Bond very quickly to a person. the are good little talkers.
Birds should never just be left in there cages all the time , fulltime, They stress to the point of ripping all the feathers out.
My Daughter got her own bird last year.( her lovebird died a couple years ago, and she needed time to heal) when she is home the bird is out the cage and spends time on her shoulder or wandering her bed or windows etc.
Can you tell I am Pro Bird ? hehehe
Hope you decide what will be best for you and your feathered friend