How can I make my hard orthotics fit better in my shoe and easier to remove?

My orthotics are so hard to remove that after having had to take them out a few times in a row recently, my left shoe has lengthened! I've tried so many things to make it fit better- a spacer under the orthotic, 3 types of pads at the back. I'm welcoming any ideas because my right foot hurts with wearing them and then I can not tolerate the left shoe when I put them on.