What do I do with my frizz-loving poofy, dry, curly, wild hair??!?

And trust me, products don't really seem to work... they make my hair presentable but not beautiful... I straighten it twice or thrice a week...I have tried a whole lot of products... I tried Herbal Essences None of that Frizziness(worked a little bit and for a short time) and Garnier Frizz eliminating lotion(worst of all) and this time I bought ethnic hair product called Motions CPR hair leave-in conditioner, its no good for me at all.... I even spent 14 dollars on a little bottle of CHI straight guard, before that I've been using tresseme thermal creations spray... CHI is much better than all of these products but it DOES NOT stop my frizz and it does not make my hair look hydrated....it only works sometimes when my hair is deeply hydrated(rarely) When I use hot oil and do crazy things like mayo hair mask..my hair behave well for a day or two than go back to same old ways.... its soo annoying!!! my hair is not thick like african-american hair..its almost like Caucasian hair with waves and curls a lot of crazy frizz... I also have hair fall problem... I want my hair to be healthy and shiny and frizz free..... tell me what to do!! Im sick of buying products....straightening makes my hair a disaster if i straighten it when its extremely dry and products DONT work at that time!! thats when i want them to work! not when I already have conditioned or hydrated hair!!! aaarrgh its sooo annoying!!! I hate it that every other girl has pin straight healthy looking hair and mine is a big dry nest!!!