Long hair product recommendations?

🌿 Felicia 🍃 • •♐• Mom to Coralee Ellen 💜 and Raya Dawn 💜 •

I've been growing out my hair for the last three years and having a hard time taking care of it. I usually wash it once every day or two and put some leave in conditioner in it then let it air dry. I generally just go with what's cheap like Suave but I'd really like to hear what some ladies do to keep their hair looking nice and healthy. My hair is very fine, flat, and mostly straight.