1) What you can do , it to keep your hair and stop receding. You will not regrowth on the " dead zone " . Lost hairline hair is almost imposible to regrowth ( baldspot is usually much easier ) .
So, you must understand this to evaluate if there was a progress or not.
SO, what you should do is to keep all that hair that you have, not longer receding, and all this done it without side effects . And I am telling you this with 42 years and balding since 17 ! . So have a little experience on this.