can you tell us what products you are using and your routine with them.

also, it is good to know you hair's properties -- the texture, the porosity, elasticity -- gives you a better idea of the type of product that would work. here is one link to look at (there a many):

Live Curly Live Free - Curly Hair Basics
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3a, some 2c & 3b, medium texture, porosity normal, low elasticity
washing/cowashing, conditioning, protein tx: [I] curl junkie products
leave in:cj conditioners and treatments as leave in
styling: cj aloe fix gel, cj pattern pusha, cj honey butta leave in, cj cccc, cj ciab.
sealants - jane carter nourish & shine