I'm decently intelligent, and have done fairly well academically and in my career. One of my traits, for better or for worse, is being detail-oriented (for me meaning that I don't feel comfortable until all the details of the thing I'm working on are known and taken care of). That trait has always been a double-edged sword: it's helped me as an engineer, but I also have a tendency to be overwhelmed and easily distracted, and it can make it hard to prioritize.
Since the advent of smartphones and modern "notification channels", however, it's definitely skewed much more to the negative. I feel like my concentration and focus have been totally shot, and, saddest for me, my creativity has taken a huge dive. I've also spent thousands on coaches/therapy, but it's still a constant battle that feels analogous to I think what people with strong addictions feel.