I suggest you find an SLP who achieves board certificates and has experiences as much as possible, and for you you gotta also elaborate your stuttering situations in as many details as you can to inform your SLP of your situations and they will work out the countermeasures for you. But the outcome derives from your own commitments into the therapies and SLP so you gotta guarantee you can dedicate yourself enough into therapies otherwise you cannot assert your therapist cannot deal with your problems.