Struggling to Keep Up with the Fast-Paced Norm

I have a pretty big fear of being left behind because of how much/how slowly I process information at times. I feel like I annoy people when I take too long to come up with a word, or use flowery language while I’m getting to my point. Does anyone else struggle to keep up with all the people/things going on in your life? How have you dealt? What do you think helped? Right now, I usually need a hard stop after so long (i.e. burnout), because I try to keep up with the fast-paced norm. But I want to help people understand me better, and I want to address these feelings of inadequacy, because they’re not helpful to me living how I want to.