Is it dangerous to quit watching porn cold turkey with bipolar disorder, anxiety and add? if so, what solutions are there?

Therapy?: Have you yet tried any form of psychotherapy? Typically, the optimal combination of things to treat emotional issues such as bipolar/add/and whatever all else is medication (which, on your best day, is supposed to take the edge off symptoms) but the real gruntwork takes place in psychotherapist's consulting room.

No. You probably: use porn to alter your mood, as in reduce anxiety or distract yourself from other stressors. If you have a sex addiction, that's another matter. For that, see an addiction specialist--probably a psychologist is best. You'll need to find other ways to manage anxiety and mood fluctuations. Are you taking meds for any of these conditions? Side effects of anxiety? The very reason for porn?