Diligent A Licensed Professional Counselor exercises competency in broad subject matter in counseling therapies, including substance abuse, grief, and domestic violence. youth and adolescent development, including social, behavioral, emotional, and cognitive strategies. Exhibiting expertise in listening, empathy, and unconditional positive regard. As a certified educational diagnostician in the state of Texas, I have the knowledge and experience to assess, identify, and work with people with disabilities that affect school performance.