So I have a cockatiel, it's not my first bird and I have a lovebird, we got them both from the same breeder and she takes really good care of her birds, we got them both pretty young, the cockatiel was slightly older than my lovebird when we first got them cockatiel (we got the lovebird first) but this is were the real issue starts, I'm wondering if my cockatiel is mentally challenged, as in stupid. When we first got her she was already really skidish, she's around 1 year old right now but she's still extremely skidish? Like she gets scared of EVERYTHING, also she can't really fly properly, it's become a pretty big issue because we can't really take her out of her cage because almost every time we do she ends up getting spooked by something or just feels like flying off and end up crashing into either the wall or a mirror and I'm worried she'll hurt herself, she gets really scared even when I try to pet her but she's perfectly fine when I'm just standing there talking to her, she has no problems eating and is actually quite a glutinous bird, she always tries to steal food from people if she she's it and she calls my name in the mornings when I need to get up for school and around the time I get home from school so I don't think she's completely dumb. Of course cause we can't take her out of her cage without her injuring herself she's become a bit untamed but I really can't do anything because she gets so scared of everything, flies off and crashes straight into walls, any advice?