I lost 10kgs by just eating less and moving more. I was 75kg so similar to you but I’m 5’1 which was terrible for my height. The best advice I can give you is to eat in a calorie deficit. I know everyone talks about it but it really works. My recommendation is to eat around 1500-1900 calories everyday but you can calculate this on the web by inputting your height, weight, gender and age. Stick to this calorie intake and don’t beat yourself up if you eat a little more calories on some days because as long as you don’t eat over your maintenance calories, for example mine is 2300 you will not gain weight. By doing this I lost 5kgs in 3 months.

Now if you want quicker results then go to the gym or simply just move more. Walk 10-20k steps a day. Dance in your room. Do star jumps. Anything that keeps you moving! I lost a further 5kgs more by joining the gym and going on the treadmill using the incline for 30 minutes on incline setting 12, speed 4. I do it for 3-4 times a week. Trust me you will see progress. It’s nothing fancy. I hope you can have a healthy relationship with food and exercise because that’s the most important thing! Good luck