How to make my hair soft and mangable without it being greasy. natural products would be nice its long & curly?

i dont using heating applinces like dryers strightners or anything like that. i took a billon quizzes and they all say my hair is healthy but it doesnt look like it. right now i put olive oil on my hair and it makes it really greasy and ugly it helps my hair but when it comes to my bangs or what used to be my bangs NOTHING WILL HELP THEM. i can put a gallon of oil on my hair and they'll still be poofy. i used moose for a while and it kinda worked but not really it just made it sticky. i have curly long frizzy dry hair and i need help