Stabs are dogshit for me

I don't know why but my sword is always really wobbly when I try to stab someone. Most of the time my weapon just slides/rolls of of the guy and I end up in a really shitty position. Also because of the camera angle it's almost impossible to see my target most of the time. I think a solution would be to make the character lunge forward with the sword really straight instead of having to do everything myself