Excellent! The way I see it, its more like repeated banishings disperse the energy over time, but I don't know for sure! I don't think the Hammer Sign is a problem, its not the part of the ritual that banishes. So I would just trust the divination, and yes you can continue, you don't need to start over. 6 is the number associated with the planet Venus. You can of course continue invoking Frigga-Venus energy after, but I would also suggest working with the other planetary energies to balance it out. Tyr-Mars for instance is a good balance to Frigga-Venus, or you can go through all of them. As usual, divination is your friend!