21:20 not sure if you will read this or care but i will share anyways.when you were saying, why you don't understand your sad. as someone who has bipolar (not saying you have that) i've talked with a lot of people and professionals about mental health issues. sometimes its not about whats going on in your life, sometimes its literally just something genetically and physically wrong with you. sometimes our bodies dont produce enough of what it should and that could lead to feeling sad. also, just because you have everything you could want, doesnt mean that means you shouldnt be allowed to be sad. having everything means you have nothing to strive for, and its clear that your work you do is bothering you as well. i would say best course of action is to talk to a professional and go from there. i know some people are strongly against it and think it won't help, but even if it doesnt you can at least be proud of yourself for trying. hope this made you feel a little better.