Aww Matt, Rocco will be fine, and he will heal really quickly. When Dozer was 7 months old, we had him neutered, and the next day, you wouldn't even known he had surgery. He will be a better dog, and he will be healthier in the long run after his surgery, as it will lessen the chances of cancer, plus safer, because by neutering him you lessen the chances of him running away, and wandering, so lessen the chances of him getting lost, or hit by a car. Dozer settled down a lot after his surgery, and he also,stopped humping. He also healed really quickly. Sending love, hugs and prayers to Rocco.