I think there are jobs in the industry that are both well-compensated and not a major source of stress. Google is widely known for both high comp and a relaxed work environment, for example. I think maybe you just haven't found a job that has the right balance for you yet. I would say to follow others' advice on how to adapt to your new job but also don't be too hard on yourself if you can't make it work because sometimes it's just not the right fit.