Second everything Moonboy said, I had my surgery at 54, mine was planned 3 months after they found my 5.2 aneurysm, as he says you know you have it and can follow up and plan, not everyone gets that opportunity. Yours being small you’re far from the risk zone and I hope that will help you relax. Drs will determine the growth rate after several measurements and will determine the right follow up protocol, I recommend you find a cardiologist who specializes in aortic diseases, not all of them do and makes a difference. He/she will determine the frequency of follow ups, help you control BP which is the main factor to maintain under control.

Otherwise stay healthy and active, exercise but stay away from heavy weights or exertion that leads you to hold your breath, treat your body well, if you smoke stop, and watch your BP. Exercise also helps control stress, yoga, meditation are all things you could explore and a good therapist if it gets hard to manage.

If you ever need surgery a healthy body will minimize the possible risks of the surgery. I was out of hospital in 5 days back to work in 3 weeks. Like Moonboy I just turned 60 and live a completely normal life, exercise frequently. I see my cardiologist every year and he orders full aortic MRIs every 4-5 years to ensure no new aneurysms are forming, all good.

You will be fine, you came to the right place every one here has gone through something similar!!