It hasnt received enough light, has soggy soil, and now its dying...

Cut off the top, let it dry, and place it soil with more coarse sand and perlite...where it can have more ligh...

To add to Stefan's comments:

Keep pot with plants out of cachepot - water could be sitting in it and reabsorb, keeping it too soggy. It would help if you used better draining mix (Stefan suggested coarse sand - make sure it is coarse. It needs to be big enough that it will not fall thru ordinary kitchen sifter) - succulents do not need very organic soil, and usually suffer in it from overwatering. See excellent proof IN THIS THREAD - very healthy succulents growing without soil. Those are outside, but mix could be replicated for any pot.

@Stefan @rina_Ontario,Canada do either of you know what kind of succulent she is?

It kind of looks like an echeveria but it is too etiolated for sure.Do as Rina and Stefan said.Cut the top part and let it callous and grow roots.No water until it has roots and then place it gradually to a much more sunny place.Good luck.