Not long ago I was privileged to spend some time with Michael Learner, founder of Commonweal. He said that there were five traditions that shaped his thought: Judaism, Christianity, Buddhism, Sufism and Yoga.
Yoga is not only a physical practice but a mental, or meditative one as well.
Shortly after hearing Michael Learner say this, someone at one of my talks gifted me with a book that I would recommend to you. It is "The Unteathered Soul" by Michael Singer. It is an explanation about how what the folks in AA call "stinking thinking" can wreck our lives. Singer offers an clear and practice guide to becoming skilled at noticing one's thoughts and in the process find liberation from them.
I recommend the book, I think you would find it valuable.