When you compare this lens to another lens, most likely you will notice the key difference are the focal length which directly related to the field of view(FoV) and the max. aperture which related to the max amount of light allow to enter the camera at a given time and the Depth of field (DoF).
You may have other lens(es) that cover the 50mm focal length (give to the same or similar F0V) but they may not allow more light entering the camera (smaller max aperture) or the background isolation is not as good as the f/1.8 lens can offers.
I think the key is understand and learn what your lens can do base on it's properties and use it accordingly.
It is quite common that lenses are recommended by users in the forum to new comers. There is a chance that OP was recommended by someone to get the 50mm f/1.8 lens (of course I could be wrong, I am just guessing) because it is one of the lens often referred as "a must have lens" or "every photographer should have one in their bag".
In my opinion, lens is a tool and it help us to achieve our goal. It should not be what I can do with that tool. It may not sound strange, but if you apply it to other tools, it may be strange. For example, I just bought a circular saw, can anyone suggest what I can do with it? (OP please understand I am not making fun of you. Hope you don't feel that way, if you do, please accept my apologies.)
So my recommendation is learn about the characteristic of a lens, learn about how focal length, aperture, shutter speed affect your photos. So when you see an opportunity, you can use the right tool to do the job. And that could be the 50mm f/1.8 lens.