penetration testing teacher

Hello! I'm looking for an experienced penetration testing teacher who can help me advance my knowledge. I'm looking for someone who is at an intermediate level and can teach me a variety of topics such as network penetration, web application penetration, and wireless penetration. I'm looking to dedicate 5-10 hours a week towards learning and practicing penetration testing. I'm eager to gain more expertise in this area so I can improve upon my current knowledge.