I have a tear proximal femoral origin of the acl. do i need surgery, if not , how long will it take to heal?

Probably surgery: Partial tears of the acl are fairly uncommon and surgery is typically recommended for complete tears to restore stability as they do not heal on their own. Ultimately it is important to discuss the risks, benefits, and expectations long term with both surgical and non surgical management with an orthopedic surgeon trained in acl reconstructive surgery.

Depends: A complete acl tear will not heal on its own. Whether or not you needs surgery depends on your symptoms, activity level, hobbies, and the general condition of the knee otherwise. See your orthopedist for their recommendation.

ACL deficiency : Although some patients do well, this is rare. Without acl reconstruction you can expect instability particularly with decending stairs or turning quickly from side to side. Long term acl deficiency ultimately will end up with severe osteoarthritis in 15-20 years. In the interim, meniscus tears (cartilage"shock absorbers" in the knee) are more likely.