You can reduce medications and still be stable if you work on coping with emotions. Your therapist should not have discouraged you. Being on less medication means you dont have as many negative side effects. Its important that the therapist is open to teaching you coping mechanisms that allow you to deal with external stress. Once that reduces, the severity of mood starts to go down. BP folk tend to be very sensitive. Learning to deal with sensitivity helps in management of mood.

You can achieve a lot towards stability. Remember that it doesnt happen overnight and can take years.