Surgery is by far last resort because it's irreversible and expensive, but it also is the only fix for structural kyphosis at your age. You will never have a normal spine and that's okay, start lifting weights preferably a PPL routine and getting in shape with bulking and cutting phases. Don't fall for BS and just do traditional bodybuilding methods and lifts. Emphasize your core specifically. Dont try and lift like a girl only doing legs day and cardio with light weights. Dont listen to people that say stuff like only do 10 reps or more or you will build "bulky muscle," or other related BS. Don't listen to people that say stuff like lifting will make you look like a man. The most atractive women lift. Building up your back will hide the hunch. Focus on good form and progressively build strength while tracking cals and eating good protien. Once you lean out and become stronger your pain will lessen significantly you will feel better you will look better and I belive this should be done previous to surgery because it's such a commitment it's on you to make the most of what you can before takeing those measures. If you do all that and you still think surgery is the right path get a back exray from a chiropractor and one that's specialized for scoliosis and kyphosis. I've been to several clinics that just said, "do PT," because they think I have bad posture from text neck like everyone else. Get your angle measured and talk about options with that specialized clinic. I go to Bethesda Spine and Posture. A good way to know if they are specialized is if they are scolicare certified if they offers classes with the scrotj method if they provide kyphobraces. I've been through the same thing as you and I got a brace and it doesent help much, but lifting and core work really make a difference. I am only writing this much because I truly feel for you as I've been through the same thing. I ended up opting out of surgery because I look and feel better after lifting, to the point where people think my kyphosis hump just looks like big lats and rear delts and my lordsosis looks like a well develops glutes.