Welcome to the forum, I'm not exactly certain what youre getting at. We will need some specific information as to what your final goal is. Do you want to apply to Medical school ? If so do you plan on applying DO or AP ? What was your major and GPA ? do you have a calculated Science GPA ? What did you volunteer in ? Do you plan on applying IS or OOS ? I do think that it is a good mindset to seek employment in the field in which you intend to pursue. I don't fully understand what you mean when you say that you want to take "more related classes". Many medical schools have specific Prerequisites, all of which can be found on AMCAS's website or your school specific website.
Once you give us some more intel we will be able to direct you further.