Not many of us can function effectively under such a heavy load. Someone who is just starting college needs to learn how much work is involved in this new venture. Don't try to do too much. You may be in circumstances that require you to work fulltime. If you begin with a 40 hour job, be careful about taking too heavy course load.
Every course has certain requirements.
Those requirements apply to everyone. Someone who is working does not have any fewer requirements than someone who is not employed. If you want credit for the course, you must fulfill the requirements. A job is no excuse for not doing your coursework. College education and job responsibilities do mix.