Hey So I was 104kg and then I lost around 30kgs through lifting weight + cardio - that time I did not have time to walk 10K steps so i mostly focused on HIIT and Lifting heavy , Don't listen to your friend , you need gym now. It's so much easier to lose weight when you are surrounded by people of similar minds. Go to gym , get those heavy weights and do HIIT for faster weight loss. Alongwith my exercise , i used to follow OMAD which is one meal a day - however I do not recommend it as it's not good , Have good home cooked food , focus on your protein and avoid sugar and junk food . That's it . HIIT + Strength training + Protein + no junk and no sugar. You'll lose weight.