Another referral for NauticEd.org. They have a couple of courses (online) with video and even a practice game for monos and cats. Helped me a lot! Crew is a big factor no matter how great your skills may be. I bumped a fuel dock (not hard, no scratch) because my crew basically stood there and gave no hand signals or verbal feedback. On our boat, 43pc I couldn't see the port side very well from the helm. When the crew said nothing I assumed I was coming in perfectly then felt the bump! Also, the roving fender! Make sure one crew member is tasked with this. No matter how many times I told them, they tied all of them on! Next trip the pre trip lessons with be much more thorough.