I had DBT classes while in OP group therapy about 5 years ago. I found it to be extremely helpful & it was the part of my day that I looked forward to most. It takes a lot of dedication, as you're basically rewiring your automatic thought process, as if your brain were a computer & you had to reprogram the whole system. So, needless to say, it isn't easy. But it's very well worth it. I've been meaning to look into taking it again. Just like most information you'll learn, it's use it or lose it. I've forgotten most of it, but when I was actively using the tools I learned is the most productive I've been my entire life.