"Knowledge is of no value unless you put it into practice" - Anton Chekhov.
At Tenerife Scuba our goal is to train people to become safe, confident divers. Theory is important as it forms the basis of the physical skills you learn during any course. Like any skill though you get good at it by practice and repetition which is called “Going Diving” Just because you have done a course, got a card it doesn’t make you’re a better diver. Maybe What you need to do is get some more experience!