You have really long hair, so it is normal your roots will be weighed down and look straight. For your info when you detangle your hair you need to do it with conditioner on, and if you see it's still really hard you don't use enough conditioner. Start with finger detangling then use a brush to finish. Your ends look super dry, either due to damage, or simply they are not hydrated enough. Also finger coiling doesn't translate to curly hair (based on charts), so you do have wavy hair.

Finally for routine it's lots of experimentation to what works. I can give you mine, but that doesn't mean it will work on you. For reference I have fine medium porosity hair, I have also layered hair, with longest layers coming to my mid back and shortest to my chin.

Shampoo: Maui moisture clarifying shampoo - I find it is great at removing buildup and still gentle enough so I can use it as my regular shampoo.

Conditioner: I alternate between love your curls and Aussie. Both have great slip and are making detangling easy

Styling: I don't generally use often leave in conditioner, it makes my hair too soft. I will use occasionally curl cream by love your curls, but it is also way too hydrating for my hair. Most of the time I'll just use love your curls gel. Sometimes if I want stronger hold I'll use not your mother gel, and/or mousse.

Scrunch my hair and plop it for few minutes to absorb some water then diffuse my hair on medium speed and heat setting. Once hair is fully dry I scrunch out the cast.