Hello Maggeo: Welcome to PsychCentral! PC is a great place to gain support as well as to obtain mental health related information. There are many knowledgeable & caring members here. The more you post, & reply to other members' posts, the more you'll gain from the time you spend here.
I believe there are many members here on PC who use mindfulness as a means overcoming depression. There may also be at least one social group dedicated to this, if I'm not mistaken. You might check the Index to see if such a group exists. It may be something you'd like to join.
Personally I am a "student", you might say, of the Buddhist nun Pema Chödrön. Ani Pema teaches an ancient Tibetan Buddhist practice called "Lojong". And a part of Lojong (which translates as "mind training") involves the practice of mindfulness. So, yes, mindfulness is something I practice in an effort to overcome the mental health challenges with which I have struggled. I wish you well...