Congrats on progress.

Possibly useful-- Running with the Whole Body. I got good results (I had arches for quite a while, need to do the exercise again) from the one about the connection between hips and ankles, but you might want to skip the first one, which is self-observation while walking. Both I and someone I recommended the book to found it was too difficult.

Uncommon Sensing-- a free Feldenkrais exercise every month. I've generally found them to be excellent, but December's was (I think) much too difficult for most people. The advantage of the site is that you don't have to chose from the large number available.