Hello
@PinetownTree, if it were mine, my first remedy is to move the plant to a container with drain holes. It is not just excess water you have to flush out when watering but also accumulated salts.
Then as you repot, try to add more pumice or perlite to your media. As already mentioned, your media seems too moisture retentive, got to make that media more porous, with better airflow at root zone. Roots needs to breathe too, and succulents do not like being too damp moist more than it is needed. That is why the earlier comments already advises you to use a container with drain holes and adding some more pumice or perlite will further improve your media.
I would caution you about misting/watering at night...better to do it earlier in the day so by night time all excess water has drained away. With an indoor set up it takes longer for media to dry up properly..unlike when it is outdoors, the dynamics are different, more air, light and warmth around that acclerates dry out time. Outdoors in summer, succulents may enjoy stepped up watering, depending on ones relative humidity levels.
If you really have no choice but do watering at night, I would suggest you run a fan overhead for a few minutes to simulate more airflow around the plant, and thus help too with dry out time.
