How to lose 30kg of weight?Watch
Secondly, depending on your age (from your height you sound quite young) but 38kg is a very low weight, if you’re going to lose weight please please do it safely and responsibly.
Hope this helps, look after yourself!
And ultimately if you are happy with your weight, you shouldn't change yourself for someone else!!!
Eat more low calorie density foods.
Low calorie density foods are generally the unprocessed or less processed plant based ones.
Some people are very faddy when it comes to eating fruit, veg, seeds. Even though these foods are delicious in taste, texture and variety when done right for anyone with an open mind. When done wrong they can be boring to eat.
There's some interesting videos here:
Exercise a bit more. You don't have to go to the gym. Use the stairs instead of the lift. Run or jog to the bus stop instead of walking. Small changes like that.
Be patient. Weight loss of about 0.5 kgs per week is the right sort of rate.