You could pull it up and inspect its roots to see if they're squishy/black. How often have you been watering it? What kind of soil is it in?

once a week and I have it in soil made for cactus' and succulents

It's probably not going dormant. A lot of the standard succulents are opportunistic growers, meaning they continue to grow if conditions are right. This one looks a bit etiolated - stretching for more light.

I agree with Luci's suggestion to inspect the roots for rot. C&S soil is often too water-retentive for succulents when used straight out of the bag. Many recommend cutting it 50/50 with Perlite or pumice if you can find it. Perlite is easier to find - it's available at any big box store like Home Depot or Walmart (If you're in the US).

Agreed, I am new to succulents and found out the hard way that Cactus & Succulent soil, even though labeled for those types of plants, is way too peat heavy. I cut mine with 50% perlite and it's draining/drying much quicker now. If your plant is just too wet you can unpot it and let the roots breath and dry out for a few days, and then repot it.

Is this plant getting any direct sun, if not, you may be watering it too much. If it isn't getting optimal light it will get leggy, which you may be willing to live with, but it also won't use up water very quickly, I suggest sticking a wooden dowel into the soil to check for moisture and only water when it comes out completely dry, or move it into more direct sun, or both