I think dealing with any chronic disease can make you stronger. I think with my own dealings of day to day life with diabetes has made me more aware and compassionate of other people's challenges. I do believe that it has made me stronger mentally, the amount of information and self-awareness on a day to day level that my mind is constantly processing while doing normal functions, like holding a job down, and functioning socially. This isn't to say that I do not need time to break down and give a good cry or why me session every now and then, I think that is normal coping, and helps me flush my feelings, and keep moving forward.
And I do want to address the idea of memory loss and diabetes, while I was contemplating that for awhile, I am not sure that I accept that. Again, think about how much you process as a diabetic all the time. Example: while some people pack to go on a hike, I think of every possibly scenario that could come up with the betes, and add that to my mental list and packing list, same even for a run to the store! Grab your betes gear and are ready for anything if you get stuck in traffic. If anything diabetics excel at multi-tasking! Which is exhausting, so if other stuff slips through the cracks every now and then- oh well! Our brain prioritizes importance: first -diabetes care=survival, then the other stuff.