Biology teacher, teaches students taking the subject in O levels

I have always been passionate about biology as a subject. I aspire to take this subject going forward. I am starting A levels at Bluecoat Aspley Sixth form in September. I am aware i have no experience in teaching the subject but i am well educated on the subject as just a few months ago i have given my O level exam and during year 12 i have always gotten an A and above in the subject. Biology has always been one of my favourite subjects and i aspired to become a marine biologist or find out more fields with the subject. I had A lot of fun learning about the subject itself and rather enjoyed studying about it.