I absolutely would not go back and live in the UK and sometimes wonder what kind of boring life i would have if i hadn't found Thailand 30 odd years ago. A recent trip back home confirmed to me that i am in the right place here. For all it's faults, Thailand is still a great place to live compared to a western country.
You do need to incorporate some routine into your life here which must include exercise. Drinking must also be limited, in fact staying out of bars altogether is probably the way to go.
As for the ladies, i suppose it depends on if you like old and plump with attitude or younger and slim. I know which i prefer.