Down 100 pounds in 1 year

Hello Everyone,
I'm 21 years old,
I came upon this app through a co worker and it changed my life,
Last summer I was weighing in at close to 280 pounds, I started this app weighing at approximately 250-260 pounds on February 1 2017, to this day I am weighing in at 178 pounds.
All I did was eat the same exact stuff as I usually do, I would just calorie count and learned to really like it, still have my Taco Bell 2-3 times a week, ice cream every night, drink but usually on weekends, and cheat day on Sundays.
The first month in to the app I did not join any gym and lost about 10-15 pounds the following month I joined the gym, and go to this day, Monday - Friday for 1 hour on treadmill.
Through my whole life I struggled with always being overweight, it wasn't that I was eating bad things it was just my calorie intake was very high and I didn't realize it until after using this app I learned that my usual Taco Bell runs for 1 lunch would consist of close to 5,000 calories which was insane.
For anyone who's just starting out, don't give up I promise you to eat the same stuff just stay under your calorie goal and you will lose all the weight you need to.
First pic- August 2016 20 years old in front of my white car
2nd pic- January 29,2017 First started using app
3rd pic - August 2017 in front of my blue car