I find traditional forms of quiet meditation aren't appropriate for me. I see meditation, religion, CBT, yoga, exercise as synonymous in terms of their mental function.
For me, I prefer a moving or practical exercise.
Driving used to help me and was my ultimate form of moving meditation. Ultimate focus and zoning out allowed me to subconsciously process quite well. I'd always arrive after a long journey feeling oddly refreshed.
Now I don't drive, so I find gardening and scavenging for the required plants and materials helps focus my attention and allows me to relax.
I tried all that mindfulness and it really wasn't for me. I get the theory, but so much of it sounded like we'll meaning bullshit, and I need to be moving to relax, as weird as that sounds.