Hello and Welcome.
I find that succulents need to be cut back and repotted every 2-3 years to keep them healthy.
Make sure you have pots with great drainage, and fresh gritty soil that does not hold onto water.
"Decapitate" those long stems. Cut off the top, remove some of the leaves just below the rosette. Leave 2-3 inches of bare stem below the rosette. Let the cuttings dry for a day or two, then pot them up.
If you cut the bare long stems down to a little above the soil line, sometimes they will re-sprout from the roots or the stump.
Echeveria will often also sprout from leaf cuttings. Any loose leaves that come off can just be placed on top of soil, see what happens.
You'll be left with the long bare center part of the stem. You can try cutting it into segments, sometimes these will sprout too if placed in soil or just resting on the surface horizontally.
These plants will all look and grow better if they can get a lot more light. Keep them by the window, and if possible get a grow light over the top. I'm in Arizona, in the winter my succulents are next to a bright south facing window AND have a grow light over them that is on for 16 hours a day. This keeps them in good health through the short dark cool days of winter.