Answer:
"This push / Will cheer me ever, or disseat me now. / I have lived long enough."
Step-by-step explanation:
In the excerp MAcbeth suggest and clarifies to Seyton that he is ready to die, as he is actually sick in the hearth and he feels bad, he feels like he is going to die and feels like he is in a bad shape, but he still has lived a good enough life, he has a long enough life and he feels like he is ready to die.