Lower back spinal fusion recovery: How bad is it?

I am scheduled for a double spinal fusion and discectomy from L3 to L5 in late June. I have a high tolerance for pain but am wondering what the first two weeks were like for you all. I am 49 and in good health and tolerate pain well. I am worried I will lose most of my summer and am thinking of postponing the surgery until late fall so I can enjoy summer with my family and not be too fatigued or in pain.