Couple of suggestions:
1. Dont offer a wet mouse they seem to not prefer them that way, heat it up with a blow dryer right before serving.
2. An ambient of 70 degrees is too cold. Ambient should be about 80, and basking side should be 90. Often times the snakes won't eat if the temps are off.
3. Also at 6 months your snake is probably too big for pinky mice. Move up to hoppers.
Hope this helps!