Christian counseling is NOT a profession. It is a part of the pastoral ministry of genuine pastor/elders in the churches, who are called to be shepherds. Shepherds are charged with tending their sheep on an individual basis. The fact that most of them have failed to engage in counseling Christians is a disgrace. Also, elders are to be men, not women.
In view of this, you can certainly try to minister to individual Christian women (informally). But to seek academic or professional designations is really for the secular world. If you do get an LCSW designation, then it is clearly NOT for Christian counseling. The issues being dealt with are spiritual issues, but you will not be directed to deal with them on that basis. And the question you should ask yourself is this "How really effective have these secular social workers been, when all's said and done?"