A variety of issues, not sure where to...

put this topic.

So i'll just ask here in hope of getting support!

Anyways, i'm a male, 19 and I have these problems with my hair -

when it's shorter, 1 to 1.5 inches, it feels thicker and healthier, but once it hits 2 inches to 2.5 inches, it feels thinner and drier, like straw. How might I help it capture more moisture and feel thicker?

That's the other thing, my hair rarely hits even 3 inches, and when it does, it tends to fall off. My dad even to this day has rich hair that grows around 4 inches long. So I wonder why I can't get that...

Also, the hairs on top grow straight with a tiny bent, but that's not noticeable when they're bunched. But hair around my lower sides to back tend to grow in a circle (curly). I'd like to know if I can get them to grow straighter, like my father. See, my mother has mostly straight hair that's wavy, so that's where I get those other hairs from.

I also would like to grow thicker hair as well. Now I know nutrition is important, so i'm starting to keep up on that. Also, my dad talks about massaging coconut oil once a night before I sleep, and to place a cap on.

If anyone else has tips relating to these problems, i'd appreciate it. I feel like I have short strands of straw on my head that are hard to control (the curly parts)

Once again, thanks!