Is 20 too young?

Im 20, this year I’ll be 21 and I’ve always joked to my parents about wanting a surgery as a birthday gift, because it actually is my dream to get one. I’ve always been a fat kid, ever since kindergarten, I’ve been in sports and activities to help me lose weight, basketball, swimming, dance. At 8 I started dieting, and nothing ever changed. Everything worsened in my puberty, irregular periods, extreme bloating, and extreme weight gain.

My bmi is 40, I’m 152cm, 90kgs (it fluctuates) and I’ve always hated the way I look. I love walking and dancing, I don’t have time to go to the gym but I still try to be active and reach 5-8K steps daily, I try to eat as clean as possible, count calories, prioritize protein, drink 2L of water daily, I take vitamins and supplements, everything, I even started taking metformin on low doses to help my sugar levels.

All the “fat friends” I had in high school had surgeries and they look amazing, they look the healthiest and happiest and I want that for me too. My mom says I’m still young and that I just need diet and exercise to lose weight, that I don’t need a surgery. At this point, I can never imagine myself being a healthy weight or looking slim. Should I keep convincing them?