There is just no way around grinding out the experiments. You literally have to will something to work in multi-month long pushes where you iterate again and again until you figure it out.
Deep work is good and nice for the theoretical parts, but all the academic superstars/upcomers I know work super long AND super hard to make conference deadlines all the time.
Of course, if you just want to graduate without stressing all that much or much ambition, this might work.