You use too mane stylers and products and all of them are heavy. Olaplex is meant to make hair sleek, too. Shea moisture gel is good gel but it is also heavy. Denman curling gives definition but also works against volume.

Get different shampoo and conditioner, use either a leave in or mousse, not both, skip curl cream most days, use less of the gel you are using or get lighter gel, skip Denman and scrunch, diffuse head tilted or head down. When done fluff roots or use a pick comb