I need Help with my cat?

My cat is a little crazy ok a lot crazy she runs around like a nut job and attacks peoples feet when you walking or if your sitting down she will decide to pounce and attack.

I've tried a lot of things I bought toys to play with her and wear her down at night but it never seems to work I'm convinced she has brain damage she runs into everything head first.

We got her from this girl who wanted us to take all the cats even her mother thank god we got there though because when we went to go check her out the lady sold the mom and my cat was still drinking milk my cat is now around six maybe seven months is there any way I can get her to stop an could that just be her personality because a few days after when she started warmig up to us she was a little like this please no hate comments thanks!!