Succulents love direct sun, but if yours is sitting in the same exact spot day after day, it's likely that only one side is getting enough light. Langton and Ray suggest rotating the plant often. Succulents will lean towards the sun, so rotating them will help them stand up straight. (Leaning may also be a sign that they need to be in a sunnier spot.)
Water According to the Season
Just like us, succulents need more energy when they're in a period of growth. During the spring and summer, the plants are thriving and drinking up much more water than when they're resting in the fall and winter. Langton and Ray recommend testing the soil with a finger—when the top 1.25 inches are dry, grab your watering can. Overwatering can kill your succulent, so make sure you let the soil dry between waterings.
Water the Soil Directly
When you water your succulents, soak the soil until water runs out of the drainage holes. (If your container doesn’t have drainage holes, use less water.) Don’t use a spray bottle to water your succulents—misting can cause brittle roots and moldy leaves . You can also place pots in a pan of water and allow the water to absorb through the drainage hole. Once the top of the soil is moist, remove from the pan.
Keep Succulents Clean
"Inevitably, your indoor plants will gradually pick up dust on their surface, which can inhibit their growth," write Langton and Ray. Wipe off the leaves and spines gently with a damp cloth (use a soft paintbrush to get at hard-to-reach spots).