Quit drinking and eat right and get plenty of exercise and you will find 56 the new 30.
I am 57 and feel like I still have many good years. I run, hike in the Rockies, referee soccer and feel as good as ever, though muscle aches are now bone aches. I have probably really experienced more in life since 50 or for sure have not stopped having adventures. None of this would have been possible if I drank. I have had some slips, but just brief ones over the years. Sobriety is pretty easy now. Just seems ridiculous to drink. Nonsense. Again, though without being sober, I could not be doing the things I have been. I honestly think I have only just begun. I look forward to many more sober productive and adventurous years.