register, sign up

I sign up for a course.

私は講座を登録します

I sign up for a course to find a job.

私は就職のために講座を登録します

I sign up for a course by myself to find a job.

私は就職のために一人で講座を登録します

I sign up for a course by myself this week to find a job.

私は就職のために一人で今週講座を登録します

I sign up for a course by myself at home this week to find a job.

私は就職のために一人で今週家で講座を登録します