Help Kicking the Pop/soda habit?

I drank mostly Mountain Dew for well over 35 years. My favorite joke was that I drank so much of it that I had a direct pipe line from the factory to my house. I have also been over 300 pounds for that time. About 3 years ago I went for my DOT physical for my CDL license. That day my blood pressure was 145 over something and I was denied my card until I got it under control. I went a doctor, was placed on meds and then gave up the Dew and switched to diet soda. I didn't really change much how I ate but to date I now have normal blood pressure and lost 80 lbs and am still slowly losing. I've felt much better after giving that stuff up and best of all, even when I eat too much junk food I haven't regained any weight.