Have you tried guided meditation? A friend suggested it to me not that long ago, and it works much better for me than when I try to do it by myself. When it’s just me, my mind wanders, I think about how I’m not supposed to be thinking, etc. On the other hand, with guided mediation, it’s easier for me to relax and let go, because I’m being given things to focus on, so my mind is directed toward something and the background chatter just goes completely away. The first time I experienced guided meditation I had an extremely powerful and unexpected experience, but that’s how I knew how much better it worked for me than just me trying to do it on my own.
I highly recommend these guys: https://www.youtube.com/user/TheHonestGuys
… Just be careful if you do the “cleansing white light” one… I ended up bawling… ;)