I am the parent of a 19 year old son who has a diagnosis of bipolar II and has been using grass for over a year. he has a good therapist and does take his meds (somewhat regularly). he was in college but is now home to try to get it together. It is heart wrenching watching a once brilliant loving young man deteriorate and become despairing and depressed. Any advice on how I can support him? What helps? What doesn't? How long does it take to get this in control? Did anyone go through college w/ challenges like this?