I posted this question earlier, but my graduation is coming up, so I'm in a bit of a hurry.

To start off, my hair is african-american textured (slightly chemicalled with a texturizer), so I probably shouldn't use any products with water in them.

I flat-iron it every 4-5 days to keep it straight, but the problem is, my hair is completely lifeless and sticks wherever it's force to be.

One example is in the morning. When I wake up, it's ridiculous! The only way I can think of explaining it is like bending a paperclip or another piece of metal. When you bend metal, it stays in whichever shape you bent it in. This also means I can't rest my head in public places or else my hair will stick in an embarrassing shape.

I can even hang upside down, and my hair will stay in the same position.

I don't want weightless hair. How can I add weight to it so it will hang down naturally (and if possible, with less volume)?
it is straightened. It's just weightless.