I know about some resources, but it's in french...
ColinColin posted some resources in this forum, perhaps he could help you.
Also, in another approach, there is Rav Itsak Fanger's method, FHT, which is derived from mindfulness. He written a book about his method, and it is available in hebrew and french, so I think you can find it in english. It helped me a lot.
He made a very clear shiur in France some months ago about this, it's in hebrew with direct translation in french by a translator. I know this is available in YouTube but I downloaded it, so if there is a mean to share it in a more kosher site, please let me know...
Behatslo'ho !