My friend is 27 and has autism, she has a lot of tantrums?

She can scream the house down, shout at people, ruin people's days and nights, make it all about her, I'm wondering is this her autism or how she was raised? How can I help her with this problem? I'm 22 and don't have melt downs or tantrums. I get annoyed, yes, as that's a usual reaction but... show more She can scream the house down, shout at people, ruin people's days and nights, make it all about her, I'm wondering is this her autism or how she was raised?

How can I help her with this problem? I'm 22 and don't have melt downs or tantrums. I get annoyed, yes, as that's a usual reaction but that's it
Update: 27 years old
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