I Am 21 and like My Dad at My Age, My Hair Seems to Becoming Thinner Every Day, What Can I Do?

The best thing you can do is see a doctor. It would help to see a picture of where your father’s balding pattern ended up.  You are clearly thinning and the drug Finasteride can work miracles on 21 year-old men with your hair loss. Do not undergo a hair transplant under any circumstance as unethical doctors will offer you hair transplants to make a buck.

See here:  https://baldingblog.com/2012/08/24/i-saw-amazing-finasteride-and-minoxidil-regrowth-photos-so-will-my-hair-look-like-that/