Life is challenging for sure but you should be very thankful they found your aneurysm in time to fix it. I hope your surgeon has done these procedures before as it is a complex operation. ...but do not fear! I had my surgery in late Feb, took it easy for a few months (mostly walking 10k steps daily), then got right back to more strenuous workouts including hiking and biking. So you will be fine, but don't over exert in those few weeks post surgery... let your chest heal!