I know how a set back feels. Like you, I jumped on the bandwagon with some products that worked wonders for others, but broke my hair off so bad I almost cried. I tried the Vatika Oil and another coconut oil based product. Coconut oil is great for some, but for me, it causes enough dryness that my ends split and snap off. My bra strap length healthy, black, shiny hair was left paper thin with black strings for ends. All that hard work and those years of learning about my hair all went down the drain literally in one month. Yes, one month because I put that stuff on my hair religiously every day for a month. Before I knew it the damage was done.
What did I do? Well, I couldn't bear to cut off six or seven inches. So I threw out the offending products, and wore my hair up. I went back to the things that had worked for me in the past, that I learned about on this board. I did my deep conditioning treatments. Stayed away from heat and no-lye relaxers, took my vitamins, and wore my hair mostly up in protective styles. And I vowed to only try new products on one section in the front of my hair, never in the bank on the longest length.
Well, the tragedy happened in the month of June in 07. Now a year later, it looks pretty much back to normal. Praise the Lord!
Please keep the faith. Your hair will come back and can be even more lovely than before. I wish you well.