Hi Simone, so sorry I just now found this thread.
to NGA, so glad you found your way here.
Baja is correct, it is a sempervivum, and is in need of some changes right away. It would help us to know what your growing zone is, and what type of potting mix you have the plant in.
Sempervivum are alpine type hardy succulents and don't like to live indoors. They need sun and lots of air circulation to stay healthy. The amount of sun depends on where you live. They also need a fast draining potting mix, and should not be left sitting on/in a saucer. The excess moister will rot them.
It is also very helpful to top dress the surface of the potting mix with small gravel or chicken grit, being sure to place it up under the leaves to keep them from making contact with the soil.