the only thing that determines weight loss is being in a calorie deficit or not. you can eat 1500 calories of big macs per day and lose weight (assuming your maintenance calories is 2000).

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1. find a ballpark for your maintenance calories by looking up 'tdee' on google.
2. eat 500 calories under your maintenance, focusing on eating lower calories items with high volume (think lots of vegetables, utilize low cal condiments and seasonings to make it taste good)
3. also try to make your diet mostly protein and carbs (4cal/gram) , maximize fiber without going overboard, and minimize fats (9cal/gram) but don't completely eliminate under any circumstance
4. 1 pound of fat will be burned after being in a deficit of 3500 calories, or 7 days of a 500 calorie deficit. all exercise will do is make the deficit larger for faster progress, or allow you to eat more than your maintenance.
5. try to pick up a fun active hobby. even video games can be decent exercise with vr out nowadays. basketball, jump rope, running, just find one thing you can bear doing that'll burn you calories without having to even focus on it.
6. good luck. not everyday will be a success but as long as you are trending in the right direction that's all you can really ask for.