Anyone with bruxism/jaw clenching??

I am having a terrible time with jaw clenching. Started a year ago when I had bronchitis and then only happened every couple months for a night or two. About a month ago I started waking up with jaw pain and made the connection, but now I'm doing it when I'm awake too without even noticing.
The main problem is that my cheek and tongue have been getting in the way when I'm sleeping. I have constant canker sores and a bruised tongue now.
Anyone else experience this?? What do you suggest? I will try anything lol I just need to make it stop!