I REALLY want to encourage you to look into keto / intermittent fasting. Dr. Eric Berg on youtube is great. It is not a diet, it is a lifestyle change that will add years to your life and life to your years. I am 55 and weigh what I did when I was 15, and can still do almost everything I could when I was 15. Except handle hard alcohol... OK, I really did not handle it at 15 either but I was too stupid to realize it then. :)
Best of luck to you!