If you're really interested in eas,though not required, learning how to program will be infinitely advantageous for you. If you really want to, i suggest that you first study C or C++ (i would go for C). There are a lot of basic tutorials in the web ...

As an ea programmer, I also use records in excel to trace the trades to make sure that the script is working properly. It is a good way of detecting tiny bugs that might have been overlooked.