I did the exact same thing a few years ago and I’m still paying off the debt. What I can tell you is that you need to do everything you can to not fixate on the balance. Remember to do balance transfers once interest starts to kick in. I’m on my 3rd or 4th balance transfer at this point. I worked it out so I could pay the smallest amount, allowing me to stack more in the interim, while still knocking down the debt. That card stays locked away so I don’t end up using it for anything else. You’ll get through it.