A kitchen timer, especially the timer on your stove is your best friend in the kitchen. Especially when you are working on multiple dishes (or tasks…). You set the timer (maybe on the bit shorter side, in case it cooks faster than you expected), and you can focus on other task without worrying about burning your food.
Jot down what you need to do on a small post-it, place it on the timer, so that you know what to do when the alarm goes off.
No more ruined dishes, or extra clean up, plus it really sets you free, mentally.