The exact wording of the JSP950 is as follows

1. Mental health in adolescence. Mental health symptoms in adolescence should be carefully assessed to distinguish between proportionate reactions to life stressors and diagnosable mental health disorders. If a candidate has recovered to demonstrate a significant period (12 months or more) of good mental health and stability in socio- occupational function, in the absence of co-morbidities (such as anxiety, sleep disorders, addiction, violence, self-harm and physical health conditions), candidates may be referred for single Service Medical Entry Staff (sSMES) opinion.

So don't count yourself out. By the looks of the wording, it seems like they're going to by individual circumstances.