It’s important to have a network of support around you. People that can help you when times are tough. Not just medical support As in doctor or psychiatrist but close friends and family.
Family and a small group of close friends who know about your disorder sometimes pick up on a change in your mood before you realise yourself.
My colleagues at work also know about my condition, as let’s face it, we spend a lot of time at work therefore they pull me up if they notice any changes in me.
The quicker a change in mood is noticed, the quicker you can medicated yourself to ward off an episode.