Hair loss at 20

I recently turned 20 and I feel so embarrassed that I have hair thinning so young. It's all in the front too so my hairline looks weird when my curtain bangs are pulled back. My gyne is no help and just pushes for birth control even though I have taken it with no success since I was 16.

Is there a specific hairwash routine or products that help hair growth? Any oils... If so how and when do I apply them and wont that make my hair look greasy?