The long game
Sometimes progress happens by pushing harder than you’ve ever pushed before.
I guess that’s fine, when it happens. It sounds to me like a recipe for burnout. When you push that hard something has to break. Are you so sure the problem will break first?
Sometimes progress happens incrementally. Don’t believe anyone who tells you otherwise. Incremental progress seems explosive sometimes, which reinforces the illusion.
Mild discomfort is really all you need. You do have to push, but you don’t have to break yourself. You can just push a little. Pushing is hard work, so be sure to rest and recover. You’ve got another push tomorrow.