What diet can I do to get skinny?

I have done a calorie diet in the past and it worked very well in terms of me losing weight fast but I had to take laxatives weekly because it slowed my body down. I ended up gaining all the weight and some more back after the calorie diet. I have since tried plant-based diets, paleo, and more calorie diets and with some of them, I'll lose like a couple of pounds before not losing anymore and quitting it because it is not going well. Please give me some recommendations, I want to get skinny like how I used to be but I want it to be sustainable.

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LostGuy · 26-30, M

Eat less and healthy, cut down fast food and sweet beverages, sweets as much as possible, do workout (imo best is running and swimming) and get good sleep. No need to follow some fancy, unrealistic, diet plans almost none of them actually work. You are almost certainly gonna relapse and after that you are gonna gain more weight as a result.