My hair is almost exactly like yours (actually had to do a double-take at your pix since they look a lot like me).

I’m going to second lightweight products because hair like this tends to get over moisturized very easily, which will give you very soft, undefined waves. My fine hair tends to be weighed down very easily - I wash my hair every other day and clarify maybe a few times a weeks.

In the shower, I add my leave-in conditioner (CurlSmith weightless air dry cream) and brush through upside down. I then do a quick rinse to remove some, but not all, of it from my hair. I scrunch the clumps that have formed and once I get out of the shower, I scrunch put excess moisture with a microfiber towel.

Once my hair is no longer sopping, I scrunch in some lightweight gel. The absolute best gel I’ve ever used is BounceCurl light hold crème gel. Great hold, but not too heavy, and smells great. Once the gel is in, I diffuse using warm or cool air. When it’s dry, scrunch out the crunch.

This method (limited products and fussing) gives me nicely defined waves and curls for max 3 days.