Wife is torturing husband and his family.

Hi Sir, My wife is loose tongue at least 3 hours she scold me without reason, torture's me by assuming future events which are false and will not be happen in future also. like If I loose my current job you will leave us, like so may false reasons. I had explained her a lot but no luck she is not stopping her Imagination about false things in her mind, always negative thought running in her mind, due to her torture's I can't concentrate on my work and my families were getting trouble due to her torture. And during night around 2am she teaching same negative things to daughter, and telling all false allegation about me which were not true. Her badwords hurt me a lot, I didn't hear in my life like that badwords they are like somebody pocking a knife in my heart. She has a lot of freedom to do anything, no restrictions to her, shopping, new places visiting, cooking, expenses anything...etc She has good life going on. She do not have trust on anybody except 3 people(Her MOM, DAD, SISTER), even if you show how to trust on others, still can't belive and start nagative things on her mind and start quarreling me every day. Please advise what shell I do with legal action. I want to give her diverse.