Post traumatic cognitive decline affecting speech and conversational ability. Can meditation help?

I had an extremely traumatic event occur to me 8 years ago. I was able to recover emotionally after about 6 months to a normal emotional state. However, I noticed a significant decline in my ability to hold conversations and find words when speaking. This has up to date not gone back to normal.

I used to be an extremely quick witted, funny person and many would call me a social butterfly. However since that event, I find myself struggling to find words to speak. Its like my brain became slow. I used to have so many friends, but due to this condition I find socializing so difficult cause finding words to say becomes a chore and having a conversation with me is boring as I can’t find the right words to say quickly enough, and there’s lots of awkward silences as my brain tries to find the words.. I ended up losing 90% of my friends.

I don’t know if this is some sort of brain damage caused by the excessive severe stress I went through. I thought 8 years later my brain would have recovered back to normal.

Does anyone have any tips on how this can be cured?