30s male, 400k salary, 3m savings, will inherit over 10m. What do I do at work

I’ve grinded for years to get to the career level I am currently at due to extremely high expectations from my parents. Even now they think I don’t earn enough or have a good enough title. My job is very stressful and demands a lot of hours to be high achieving.

I already have control of over 3m in liquid investments. My parents recently made it clear they are planning to pass down millions (both are retired and don’t live lavish lifestyles). It will be over 10m.

Once I heard this I am finding it harder and harder to keep the same level of work ethic I maintained for years. It’s been ingrained in me that financial and professional success means more than just about anything except family.

I feel very guilty that I’ve started to slack off at work and cannot fathom grinding for another decade or more. Is there a way to find meaning in the work and get to a more sustainable level without it seeming like I simple dont care anymore?