Profile is from 30 years ago I look so different now,balding and 4 stone overweight.

I am a 56 year old Male who's lifestyle has been poor through drinking too much Stella,Although my diet has been reasonable good partly down to my job and i never was one for sweet food,got my sugar rush from alcohol! I now don't want middle age spread to cause me health problems and wish to reduce my belly size. I am now retired so therefore no pressure of work, hopefully no longer without that stress and expectation to go for A drink after work will cause me to reduce my Stella intake, only problem is I have time on my hands any suggestions how to fill it?
Ambition to touch my toes.
Goal 1 Reduce alcohol Intake - currently achieving,Christmas will be the challenge.
Goal 2 Walk instead of using bus, can do when not raining - roll on summer nice long walks along the seafront.