Hi, flavapor! Getting MP soap out of the mold can be tricky sometimes. How long did you let the soap cool before you tried to unmold it? I usually let my soap sit in the mold overnight before removing it. Use your fingertips to gently pull the side of the mold away from the soap - that should break the air seal and make it easier to push or wiggle it out.
If you are still having trouble removing the soap from the mold, you can pop it in the freezer for a few minutes, maybe 10-15 minutes or a little more if it needs it. The soap will shrink up enough that you should be able to remove it then.
Hope that helps!