I'm so glad you didn't take it the wrong way. I have a very good friend with TMJ and it can be a lifewrecker. A wind-down will be an amazing start. I wasn't kidding about the dentist though. A mouthguard can be a game-changer.
In the meantime, massage your jaw, hot bath, and some herbal tea. Or not, but, try to really cut down on the caffeine.