This might not be what you want to hear, but I'd stay away from harsh chemical treatments, especially something like rebonding. At first, your hair may look the way you want it, but you're damaging your hair and it's not going to look good in the long run. I think you might be better off talking to your hairdresser about ways to work with your natural texture and length to achieve some different looks. Fighting nature's design for your hair takes time, money, and effort--not only that, it usually damages your hair.
My best advice is to get a haircut and find the right products for your hair that will help you work with what you already have. If your hair is really dry, you might want to stop shampooing and switch to conditioner only washing. If you're not familiar with this method, there are lots of how-to's and discussions about co washing on LHC.
Best of luck!