You need to post a clear close ups of the plant...otherwise we are just guessing.

Looking at the photo you posted, I would guess: a very etiolated plant...BUT that could be incorrect

I will try to upload a better picture

Hi Kara, the one you suggested does look very similar but it says it grows to a bit 60cm and this one is over 150cm and still growing rapidly

Hi Rina, it had lived on a very sunny windowsill For two years with my orchids but had to

be moved to the living room by the patio doors because it has gotten so big, again a Sunny place. it has grown to this height in about 3 years it was about 10cms tall when I was given it.

It does look like plant Kara suggested.

It is probably so tall because it didn't get light it needs. Not only it should have grown shorter, but leaves should be growing closer together and color may be washed out too. Unless spot where the plant is gets lots of sunlight (for at least 6hrs/day), it is most likely not enough. Plant seems to be healthy otherwise, but in quite big need of more sunlight. If you keep sheers closed, that will cut down light considerably. What we think is enough may not be for plants...

Would it be possible to get clear close-up of a leaf incl. part where it is attached to stem? Do you have photo of it when received by any chance?

Now that I see it close up it’s definitely Senecio crassissimus. It even has some of that stereotypical purple hue.

pics from Google

As Rina has stated your succulent is slightly etiolated so there’s more space in between each leaf, it’s not as compact as it probably should be, and the actual leaves are longer and narrower. But tbh it doesn’t look bad. I have definitely seen worse when it comes to etiolation.

With stronger light my guess it would get much more of that pretty purple.

If you do decide to give your succulent more sun, slowly acclimate because it can burn going from lower light to stronger direct sun too quickly.

The older growth won’t become more compact, but the new growth will with stronger light.

You maybe should behead that plant - unless you want such tall plant.

Etiolated plants are often weaker. Sometimes, they start drooping. Your plant may not do it since it grows naturally into shrub. But if given more light, there will be visible difference in growth. Read thru THESE THREADS about beheading etiolated plants.

That’s brilliant thank

you for all of your help. I will

keep the shears open during the day and maybe even pop it outnin the patio during the daytime for a few hours.

there is new growth at the base so might cut the top 60 cams of it to see if I can improve the shape.

Beheading will improve plant overall. These are really nice, with that purpllsh tint they get in proper light.

Do not jus pop plant on patio for few hrs...If you have patio, why not keeping plant there during spring to fall? And you shouldn't just putt out suddenly, but do as Kara described:..."If you do decide to give your succulent more sun, slowly acclimate because it can burn going from lower light to stronger direct sun too quickly"... You could leave it outdoors and it will enjoy it. You didn't say what zone you are in, but this plant will live in temps close to freezing. So you could leave it there until temps drop to about 35-45*F. They bloom in winter, on quite long inflorescence, and daisy-like blooms.