Hey there. I know exactly what you mean and why you are going through this. This is the fate of very talented AND moral/just/fair people – who work in a social environment where there is no social equality. For reference: I worked in India where the average monthly salary is much lower than what you said. Curse of being talented/rewarded, when you walk/bike through the streets where everyone is struggling to live, an…
This is also true. Yes, in places with lower social equality – higher pay does not lead to less anxiety, on the contrary it leads to more. No amount of earning will feel enough when there are zero social nets for people around you. People earning much lesser but in environments with good social nets are less anxious about their future.
In this case, I would recommend what the others recommend: Find a shoulder to cry on, and keep chugginng along. Therapists, trusted friends, relatives – people whom you can trust and vent your insecurities safely on. Remember, people earning lower have it even worse.