If you enjoy exercising, or you have a naturally good metabolism, or you're just able to make a healthy meal plan and stick to it, your advice will not work for me!
I'm 235lbs and 5 foot 5. It's been slow gain over the last decade (I'm 28) due to ill mental health but I'm in a good place now and haven't gained for a long time, I had a baby 4 months ago and didn't gain any weight as I am quite healthy these days. However...I'm healthy enough to maintain this weight without gaining but I want to lose.
I've never found an exercise I enjoy doing. I hate meal planning as spontaneity is part of the fun of eating. I find calorie counting mind numbing and don't have time for this now I have a 4 month old and sometimes just have to shove in some toast.
Give me your best advice if losing weight is hard but you managed it!