A number of thoughts....
You're overthinking the whole thing. Stop thinking, just do. I've seen it before, so you're not the first. People will hide behind the intellectual parts as a way of putting off actually doing something, anything to move forward.
12 weeks of therapy? Ok, that's not much of a try, to be honest. You tried, your therapist told you that you needed lots of therapy, and you bailed. You didn't want to put in the effort. I've been through hundreds of individual sessions (conservative estimate!), a lot more group sessions, doing all kinds of therapy including CBT, DBT, neurofeedback, meditation, guided visualizations, puppet therapy, and inter family systems therapy, just to name a few. Every therapist I see tells me I'm one of the most persistent clients they've had. Trying all kinds of therapy, programs, etc, driving hours just to find professionals skilled enough to treat me (I live in the sticks!)
Here's me being blunt. The reason you haven't been able to get your life on track is because you reject the necessary steps to heal. Therapy? Eh, too much work...just send me to "go" and give me $200. Well, it doesn't work that way.
I truly hope you're ready to give it another go and find a therapist to help. The only way out is through.