I am a low emotion guy married to a high emotion woman. So I feel you. I give no guarantees that what I have found helpful will help you, and I am certainly no professional. But there are a couple basic rules I have picked up in my own marriage.
First, you need to face the fact that she is probably right. No, don’t protest, you might be right, but I doubt it. I’m guessing a lot of your arguments really revolve around how she feels about something and she is gonna always be right about that.
Second, being factually correct is not as important as being emotionally square. Unless you are arguing about a life changing issue - buying a house, family planning, etc., how each of you feel about it is going to matter more to your future happiness and well-being than anything else. Most women know this intuitively. Men figure it out only after much pain. Learn early. How you feel is also important, of course, but if you start by trying to understand and respect her feelings, she’ll come around on respecting yours.
Third, you can let her win on the emotion, and come back to the facts later. If she is venting that you don’t care if the living room looks lousy and her Mom is coming next week, let that go. Later sit down with her and say, I think you have a good point. Let’s go over the finances and see if buying that couch is something we can do. If you are really right, she’ll see it and be glad you respected her opinion.
Fourth, create rules about recurrent problems when both of you are calm. If how long to stay at parties is an issue - make a rule. If controlling conversation topics is an issue - make a rule. If buying things for the house is an issue - make a rule. Its easier to stick with the rules when emotions are high, then to win an argument in the heat of it.
Fifth, I don’t know how you have discussed your feelings with her, but many people make the mistake of discussing their feeling by pointing to the other persons actions. Don’t say - you make me feel powerless. Say, sometimes I feel out of control, and that makes me uncomfortable. Avoid blaming her, and don’t let her blame you. Put it all on the table and see if there aren’t ways to make both of you feel better.
Finally, and perhaps most important, do NOT fight fire with fire. My wife tells me it drives her beserk that I remain calm, smiling, and polite when she is going off on me. But I know from experience that if I yell back it will just get ugly and no one will win.
Hang in there, its worth it. When it gets really bad take a deep breath and say to yourself “I love this woman.” Then tell her.
Good luck.