I have done that and more, it lead to burn out after 4 years or so. And yes there is a part where you feel different etc. And burn out is tough, it takes a lot

I have done that and more, it lead to burn out after 4 years or so. And yes there is a part where you feel different etc. And burn out is tough, it takes a lot of time to recover, it is kind like constantly pushing heavy and the gym and then get a severe injury. But burnout is more like mental and emotional exhaustion. It is extremely hard to get out of that state, so I would rather have a alow gradual progress with some frustrations and delays than the risk of a total burnout.