Welcome to Pprune
As someone who has a Masters (Unlimited) and an ATPL I can tell you that it is a long and arduous path to tread from one industry to the other.
However here on Pprune there are similarly experienced people who will always help someone get started up the ladder in the industry. However it is always appreciated if they do the research first by using the Search function. I am sure you will find lots of information and learn a great deal about the aviation industry - which is far removed from the maritime industry.
Please feel free to PM me but in the meantime I will close the thread.
HWB