LMS with custom post

Hi, Im a newbie to the wordpress. Im developing a Learning management site in wordpress. It allow to create register and login for student and teacher seperately. For register and Login, I use Profile Builder Plugin, its working fine now. Im stuck to proceed to the next step.
Based on the role, user can post courses as teacher or take courses as student. Each user have the PROFILE page which contain the detail of the user who logged in based on the role. If user is teacher, all the courses whatever created by him/her will be displayed in profile with the student rating, feedback about course and teacher. If the user is STUDENT, the courses whatever he enrolled will be displayed in the profile.

What I need is
1. Teacher could Create course that should displayed to the students.
2. Student can enroll to the selected course and can give the feedback and rating to the course after completion
3. courses will be displayed with comments and rating in the TEACHER PROFILE

Pls help me to how to add this features to my web site. I have gone thru the multiple plugins, but its not suit for the requirement. I could go for custom posting. Pls help me to proceed to the next step.