Finding the beauty in life is always the key to contentment. When you develop a condition like type one diabetes after you have been alive for a few decades, the path of positivity may be tarnished with insulin injections and blood sugar checks dozens of time per day. It can feel all consuming at moments. So many factors are not in your control.
You still have the choice to life as healthy as possible to hopefully avoid healthy complications later. It strips away a little bit of the pure enjoyment of food and makes it feel more like taking medicine.