For your information, dying leaves don’t always mean your succulent is dying. In fact, as with all plants, succulent leaves don’t live forever. As the plant grows it creates new leaves and the older ones die. So, if your succulent has dry, crispy leaves at the bottom of the plant and only at the bottom, you don’t need to worry. This is normal.... :)
If the leaves start to get unsightly or bother you, gently pull them away from the base of the plant and throw them away. Only pull off the leaves that come off easily or are totally dead. Now, if the upper leaves (the new growth) on your succulent aren’t looking so great, you’ll want to take notice and determine what might be causing the change. If the leaves are starting to look yellow and transparent, and feel soggy or mushy to the touch, it’s likely you’ve over watered.