Both of my kids have LDs (ShawD chiefly ADHD, ShawSon primarily dyslexia but also ADHD and other stuff). Both finished college with GPAs over 3.9. Both found the accommodations invaluable and the flexibility that one of the other posters mentioned to be quite helpful. ShawSon was interviewed after starting a tech company during his senior year and becoming CEO. They asked about his advice to kids to learning disabilities. One thing he said was never being embarrassed about who you are including LDs and telling people that people about it. He said he asked people for notes and they were much more understanding about that if they knew he was dyslexic. Both are now in grad school in completely different fields. He was asked when he was in college about being interviewed for a film on high-performing dyslexics and he said he didn’t want to be defined by his LDs.
One thing tha seemed to help was getting a coach. ShawD was given a peer mentor at her request by the Disabilities Services Office of her first UG university (she transferred). It was a senior in her program and he helped her anticipate the challenges she would face and how to manage the workload. For our son, he had a coach (who had worked with him for years) who monitored his emails and reminded him of deadlines. She also recorded some of his longer readings. We paid her all through college. He is now at the top grad school in the world for his fields and the coach is no longer involved.
The other thing I’d suggest is organizing university to play to your son’s strengths (and if possible, choosing a school that allows sufficient curricular flexibility). In HS, it was necessary to show no weaknesses and be good at everything. Don’t take courses (or many of the courses) that require things that are hard for him from an LD standpoint. For ShawSon, the advice was don’t take courses with 400 pages of reading a week. For ShawD, who was a concrete thinker, don’t take courses that you can’t connect to your interests. She actually transferred to a school that enabled her to take a more concrete, practical course of study and has been happy and extremely academically successful ever since. [I think both kids are doing better in grad school than they did as undergrads as they are even more focused on things that play to their strengths].