Uh Olaplex is good, but you can also nurture your hair with coconut oil which is divine.

And if you want shiny hair...eat avocado girl, it makes wonders I include it in my weekly diet !

Curly hair has special needs. For styling I have personal preferences. Tigi curls cream first, Silhouette strong hold mousse from Schwartzkopf Professional and a curl gel from Osis, it is my go to routine which has proven the best for my hair
Your curl pattern is stronger so I suppose you need less product

This goes first after you wash the hair. This defines the curls first.

Neext

A tiny bit of this one. You apply it to your palms and scrunch your curls. By no means put product on the roots or scalp as it will tend to make your hair way too heavy with product

Neext and final

What I would have loved to see from this visit would have been a layered haircut for your hair, it would do wonders and give you awesome volume and texture. But you have to have this hair cut by someone who knows curly hair , it can easily go wrong lol.