It is said that it can take up to two years for a disc to heal on its own. Some heal faster and others much slower. And then some never heal. Everyone is different.
If you are still in that much pain, you need to speak with your parents about this and with your osteo to see what else can be done to help you with your pain.
Hang in there. You are not alone. My back issues started at age 18. Im now 45. All the best to you.
One thing for you to remember.. dont EVER give up on yourself. Don't let this consume you. You have a full life to lead and keep your mind sharp to reach for that goal.