Welcome, TheBestLife!

I wanted to take a moment to join
CautiousHope in welcoming you to the discussion forums. I'm so sorry for what you're going through but glad you have found a community where many of us have been through similar experiences, and we can learn from each other. From what you have written, it seems clear you will get good ideas and support here if you continue to read and post. In short, you have found the best place in the world for understanding, compassion, and education as it relates to coping with loved ones who have personality disorders.
Thank you for sharing with us what you have thus far:
... .but I’m the only one noticing the improvements cuz all they see is every time she gets angry with me.
Feeling stuck. Please help.
I imagine that you are, indeed, feeling stuck. I would, too. While most relationships between married couples are carried out behind closed doors, living with your parents, no doubt, puts all this behavior - the good, the bad, and the ugly - on display.
They are concerned and worried about my well being and how I’m being treated.
This is understandable and her behavior may, in time, cause a serious rift between your wife and your parents. Have you ever heard of the
Karpman Drama Triangle (top image)? Triangulation within relationships occurs all the time - we are all involved in triangles - some good, some bad. However, as you can see, the ideal triangle would be the one on the bottom.
I just have to applaud you for being willing to continue to put forth effort into understanding your wife. In my opinion, that's true love. This site is rather HUGE, however, there are many, many articles related to bettering your relationship with the angle of using healthy communication techniques, setting needed boundaries, and validating what is valid. You will find these articles scrolling in the right-handed panel on this board. We can help you with questions, point you in the direction of additional resources, or just be a sounding board.
Keep writing. It helps you to get it out, and it helps others when they see that they are not the only ones suffering. We look forward to hearing more from you.
Keep writing, keep processing, keep learning!
-Speck