To start going to the gym isn't a New Year's resolution.
"Resolutions" are new ideas, plans or wishes for a New Year.
Courses or workshops can improve and make your curriculum look better.
"take up" means....
to clean your house
to begin or start doing something new in your life
to get involved in a new project, career or course
to do your homework
Person A, in the conversation, is going to continue with his English course with coach Rolando.
Learning a new language is something that can make your horizon brighter.