What you have here is a Dracaena fragrans. Your plant is doing great, however it is getting to large (tall). This plant is a very popular house plant, because it doesn't need much water nor much (direct sun-)light.
What you can do is to prune it. You could for example cut off the top, and let the bare stem grow in the pot (new shoots will emerge). Or you can replant the top as well, it will root soon if you just cut off the top and put that in a new pot of soil. Don't keep the soil too moist during propagation (it can cause rot). Or you can put it in water and let it root in there.
You can also do both! Let both the bottom and top grow into new plants.
Also you can cut the long stem in many smaller pieces and put them all in fresh soil. Give the new small plants to friends or family as a small present. See e.g., here for more about propagation.