20, hair rapidly falling out

[wut]

Hi, I'm 20 years old ans for the past couple of months or so my hair has been rapidly falling out specifically in the frontal area of my head. Over the past couple of weeks I have really started to notice my hair thining to the point where I can see my scalp. I really want to try to strengthen the hair that I have left, but I really don't know where to start. I've been looking into revivogen's system but there aren't many customer reviews of it it seems which seems kind of fishy.

Also, my hair has always kind of been naturally dry and brittle which probably isn't helping.. are there any shampoo's that can help?

Any help would be greatly appreciated.