I have spent a TON on products too! My dh would die if he knew how much I spent. The girls I work with love it though because every so often I bring in my expensive products that I only tried a few times and give them to them.
This weekend I noticed I have a lot of breakage and extra frizz so now I am wondering if my thyroid is going bonkers or something else. I have also tried coconut oil, baking soda (once) and vinegar rinse and over the last week or so and I have tried a anti-humidity hairspray. Now I am also wondering if any of those products zapped my hair. Over the weekend I conditioned A LOT! About a hour on Friday afternoon and all night Saturday night. It feels a little better but only because I used a lot of styling oil in it.
I am scared to try the Keratin treatments because I have read where some people's hair doesn't like them and it made the problem worse. It's too expensive for me right now too. I'll just keep deep conditioning and trying a few other products and hope for the best. I really would like it to be in great shape by May for my next cruise.