Are there treatments for naturally thin hairlines?

I have fair blonde hair that's runs on my father's side. I also have a really embarrassing hairline that makes me look bald and have a very square forehead. As you can imagine, the hair on my hairline is thin, short and almost transparent. Being a teenager it can be real downer seeing girls with thick full hairlines. Are there treatment options not only for my hairline, but for thicker hair all over? Is there forehead reduction and will most insurances cover it? Or are there natural remedies?