A big big thumbs up for Couch to 5K - I was a total sport-dodger a year ago, never did any exercise at all. I tried just "going for a run", pushed myself too hard too quickly, and spent about a week afterwards barely able to walk! Couch to 5K starts you at the very beginning - literally 60 seconds gentle jogging for the first session - so it was achieveable, a great feeling. There are lots of motivating podcasts with all the timings worked out for you, so you just follow the instructions.
After nine weeks last summer I was able to run without stopping for 30 minutes, and I am still pinching myself that I achieved it. I run two or three times a week, going out at 6.30am so I'm back before DH leaves for work, I have my shower, and I haven't eaten into the day (fewer people around at that time to see me stagger/wobble along). Absolutely brilliant, anyone can do it! I did buy decent shoes from a running shop, but only a few weeks into the programme, but they are well worth it.
The second string to my bow was giving up carbs - sugar, bread, spuds, rice etc. Yes, Mitten, I do snack on salami and cubes of cheese - protein fills you up far better than carbs! Dead easy diet, much preferable to calorie-counting, and eating less "bulky" meals instantly dealt with the pot belly.
So, a year on, bye bye back-fat and gunt
; face still looks like a bag of old frogs, but hey, not much I can do there. But I do feel so much better in myself. Now I just need the HRT, and I will be sorted......