I don’t know if I have ADHD, but I struggle with this as well! Sometimes I’ll write a message/email and there’s a paren after every other sentence.
Lately I’ve been making an effort to substitute with a semicolon or bridge the thoughts with a dash:
“I’m thinking this - but I also think this.”
Unsure if that’s a correct usage of punctuation, but I feel like it helps the sentence feel more focused and an expansion of the thought, rather than a random segue (especially with work)
Edit: realized that I had broken my own rule seconds after posting