Ofcourse I am. I'll kneel next to her and tell her no and then sit and wait untill she listens and then give her a treat and then continue walking. It doesn't seem to work though.
Another thing is that when she gets into this mode, treats don't even distract her.
Umm...I'm reading your correction effort and it seems to me that she's taking this as a reward for her efforts at getting your attention and that's why it's not being effective.
I don't kneel next to dogs that I'm attempting to correct. I think that I'd be watching for the first attempt to grab the leash and would ask for a sit (if she doesn't know sit yet it's time she learned it). And I'd carry a toy and hand that to her instead. For the jumping I'd use a quick leash snap and "Off" and then ask for a sit and continue after she calmed down.
And I don't think I'd be treating--in this case it just seems to me to be delivering the wrong message. As in--"I grab the leash or jump on my person and she kneels down close to me and says something and after a few minutes she gives me a treat--I think I'll try this again."
It's not normal behavior. It's misbehavior and she hasn't gotten the message that she should be doing something else other than leash grabbing or jumping.
Find a good Obedience class--a good trainer can help you get a handle on both of these problems.
While Adara's trained leash tug works I don't want my dogs to tug on leashes so that solution would be out for me but handing them something to put their mouth on (empty gallon milk jugs worked like a charm for one of my dogs) give them a focus other than the leash and my puppies learn very early that jumping on me under any circumstances is a BAD idea so that's at least one problem that I don't have to correct. Usually <g>.