Yes it has definitely helped but the changes are small. I'm not doing anything drastically different, it's now that I am approaching or interpreting the same challenges differently than before. For me, this has made a real difference in how satisfied I am with my life (e.g., not being constantly suicidal).
It took me about six months to really open up to my T and then another eight months to experience real improvements. But I'd been depressed and socially isolated for twenty years. I'm still working on everything.