Your succulents is extremely etiolated. It is not receiving light it needs, so it is stretching, trying to reach some. I can't tell if your pot has any drainage hole? If not, plant could be sitting in soil that is constantly wet. Some ppl think they would just water less - but even succulents should be watered when needed.

Stems could be drying for few reasons. What I can't tell is what succulent it is because of its poor condition. It could be even one of the hardy succulents, that should be grown outoors.

Pls. give more info: what it is potted in (soil? what kind?)

-is there drainage hole

-how much light is it receiving

-what growing zone are you in (perhaps you could grow it outdoors year-round)

I am not sure if it would help to ID, but sharp close-up of the 'best' part of it may.

It’s in a glass jar, so no drainage hole... I know it’s not good for the plant but it’s been doing fine for a year in it. Haven’t changed watering routine but recently moved so the light might not be the same and that could be the issue. It’s potted in the soil it came in.

Megan

Sorry to contradict you, but plant was not and is not doing well. Plant may survive for a long time, but just because it is alive, it doesn't mean it is doing well. I am not trying to be mean or patronizing, just realistic.

You could save it, most likely, by cutting off all dry branches/stems. Take it out of pot. Get rid of all old soil and cut off any damged roots (dry, rotted).

For pant to grow well, it needs to have good drainage. That means potting mix, and the pot. Mix potting mix with lots of sifted or rinsed perlite, in 1:1 ratio.

Repot into container with drainage hole, give it lots of light, and water only when potting mix is almost completely dry throughout. It needs to grow much more 'full' - sets of leaves closer together, even if it happens to be trailing plant. Stems needs to be much sturdier.

I can't tell what it is. Some leaves (biggest ones) look similar to jade - but it isn't. You should post photo of it when it recovers for ID.