Your value is not determined by your productivity.
In a capitalist world, it can be hard to remember this. But despite what you are pressured to think, your value as a person does not come through what material value you create for others.
It's probably best to flip this on its head. Rather than thinking "others must value me regardless of my productivity"--something you have no control over--instead think "I must show others that I value them not based on any benefit to me". I.e. be the change you seek.