I don't know what to do with my curly hair!?

I have long curly hair. And its real curly.(I'm half dominican) I love straightning my hair, but I can't do it unless I get under the helmet dryer thing. And if I only flat iron it it will damage my hair. I use LOTS of gel, because that's the only thing that helps style my hair and keep my hair.. Mouse doesn't work. I tried to good brands like Tresseme and Aussie. My hair just end up drying up and I don't like using gel because it has alcohol and it can ruin my hair. When I wear gel I usually just let it down. Does anyone know any GOOD products that will help style my hair the way I want it and keep the curls for hour without drying out? Natural ingredients will be great. Thanks :D