Regrowing thining edges

I have been experience some thinning of my edges for a couple of years now.  It all started back when I had long locs (which I loved) that almost reach my waist. A combination of my always messing with my hair and the weight of my locs, caused my edges to get thin on the right side of my scalp. I was hoping that if I combed out my locs, that maybe my edges would start to grown back. But no such luck.

So now, I am hoping that I can find some products and tips to help with both re-growing my edges and thicking my hair. I found a few videos on youtube with women that where experiencing the same issues and what they did to help their hair grow.
 

I am going to be taking some steps to work on repairing my own hair. Here are a list of some of the common tips and products that where used by the 3 woman -

Tips:
Drink more water and eat healthier
Avoid anything that will add tension to your hair
Try to sleep on silk pillow cases
Massage scalp
Keep hair in protective styles

Products that I am considering trying:
Jamaican Black Castor Oil
Fertilizing Temple Balm
Rosemary and or Lavendar Oil

Once I am able to purchase these items, I will mark my calendar for 3 months, so that I can come back and let you all know if I saw any progress in my edges growing back. Wish me luck!