If you r going to have fun

If I'm going to have fun, wine.

You use all macros.

Other than fat (which needs no conversion to be itself) nothing else is destined to be converted into fat in your body!

When you eat too many carbs, above your maintenance calorie level, more often than not it is not the carbs that get stored as fat (it costs your body energy to convert them). What gets stored is the fat you also ate at the same time. If you're in an energy surplus.

If you're in an energy deficit (successfully reducing your weight), you are not storing fat. By definition you're reducing your net stores of fat.

Once you've eaten what many consider enough protein, 0.6g to 0.8g per lb of goal weight within the normal weight range (multiply kg * 2.2), eating more is ok but will only offer marginal incremental benefits

Control your calories and you'll lose weight. Eat food and in a way that you see yourself following 5 years from now.

You do realise that carbs very, very rarely "turn into fat"? (In humans.)
It takes a consistent and prolonged calorie surplus and an enormous and prolonged intake of carbs - like a glucose drip.

Fat is the preferred macro to be stored as fat, but of course net increase in body fat only comes in a calorie surplus.

Maybe just choose something that you enjoy if you are "looking to have fun" rather than overthink things?