Did I gain all this weight back slowly or fast?

Anonymous
So in my junior year of high school I lost a lot of weight, pretty fast though I didn't even notice. When I got to my senior year and my freshman year of college I gained majority of my weight back. So in two years I am 29 pounds heavier :(. I'm a sophomore now and I am determined to take the weight off. I did stop working out for those two years so I know that's the problem. If I do 30 minutes of cardio everyday and weight lifting every other day and switch my eating habits, could I lose the weight before the summer?
Did I gain all this weight back slowly or fast?
3 Opinion