Surgery in two weeks

I have to have major surgery done on June 11th and I'm absolutely terrified that my heal time and heal process is going to take forever. I haven't been away from my workouts for longer than a few days or so and now, after my surgery, I'm going to be out for quite a few weeks (not sure how many). I've been working out with fitness blender for five years now and I am worried about my process over the next few weeks. But I also know that I'm not going to rush the healing process either because that could delay the healing process even more!