Time to brag for a second- Weight loss

13 weeks ago I decided it was time to really start eating healthy. I've always gone to the gym, but my biggest issue was my diet. I would eat like Michael Phelps training for the Olympics 13 weeks ago I started at 229 pounds and now I'm 191. I'm 6'1 and wore a 38 size pants. Now I'm in a 33 size pants very comfortably, I could probably wear a 32. I know CSB, but I'm proud of myself

I haven't been on a "diet". I just cut my portions WAY down and eating more fruits, vegetables, no fast food, no pizza, no cheat meals for 6 weeks, intermittent fasting, 1 gallon of water/day. My typical day of eating looks like this:
11:00am lunch salad with spinach, cucumber, tomatoes, egg, croutons, peppers, 1 avocado, fruit cup
3:00pm snack 1-2 fruit cups
6:00 dinner some type of protein, vegetables

I eat 1500-1800 calories/day for the last 12 weeks. Just this last week I started adding 300-400 calories/day. Last week I lost 1 pound doing this. I don't plan on losing more. I'm at the point where I'm gradually adding calories from week to week to see where the median is. The weight literally melted off by doing this

I'm 42 and this worked well. Gym I would do HIIT training sprint 30 seconds rest 15 seconds. I do 18-20 intervals of this. Then I lift for 30-35 minutes