Hey my sister accord the brakets holding the altanator keeps braking why help plz

 

Your belt. Have it checked. It's pulling it at an angle and the tensioner is doing its job.

But really, the belt is why it's breaking. there's a misalignment somewhere or the threaded holes are stripped/cracked where it meets the block (not sure if it's connected right to the block as i don't own an accord, and don't have a diagram right here)
How many times and how often does it bend the bracket? How's the wear on the belt?