I feel like commiting suicide in future.delayed puberty with small rib-cage, wide waist bone, large wide hips pelvic bone.how to expand ribs and testis?

Reach out/Breathe in: Please try to be patient and seek ways to expand your mind too. I know that it must be very painful to be physically different in your development, but there are role models you can find. If not in real life right now, certainly in history and in fiction. You might find medical or physical therapies, but don't forget to seek enlightenment & wisdom too!

Suicide?: You sound very upset with your body, and i hope you won't kill yourself over it. You are only 18, with a lot of living to do in the world. You need to work with your physician to deal with both your physical state and your feelings about this. Some males your age may still be growing. If suicidal feelings become intense, you need to go to an emergency room for help.