I too am picking up on a lot of tension from you. It sounds like things were ok in the beginning when she was kind of lazy but now that she is a healthy, happy, and very bouncy young cat she is becoming a problem. Some cats are just way more active than others and I think she sounds very bored. Do you spend time playing with her? I know we spend lots of time wearing our youngsters out in the evening. We have the laser light and Rosco bounces off of the walls when we have that out but he settles down once his energy has been released. Maybe you should try spending time with string toys and rolling balls with her. Anything to get her moving so she uses up that energy that is getting her in trouble.
You are right that there is no way to know for sure if another cat would help or not. I think the more you confine her and limit her the more bored she is going to become and make things worse when she is loose.
As for her attacking your husband I think that some cats just don't do well playing with people. They get to rough and that really hurts! Try to redirect her energy onto a toy that she can attack. When Magoo was so aggressive we got him a stuffed toy and tied a string to it and let him kick his stuffed chickens butt instead of ours!! That worked for us because he got his aggression out on the toy and we turned it into play time for us. Everybody was happy then!

Just remember that they are like kids and want attention. Bad attention is better than no attention at all. If all else fails....she will outgrow it eventually. Don't stop loving her but if you can't tolerate her then maybe you should think about rehoming her. Please, if it comes to that be selective and please don't take her back to the kill shelter. Once a cat has been adopted and then returned their chances are really narrowed for a second adoption.
Hang in there and remember we are here to listen and help if we can.