People who don't know much about classical music tend to lump it all together under the single term "classical music" but it covers a whole range of musical styles from hundreds of years ago to the present day.
So for example Mozart is very different from say Beethoven (particularly Beethoven's later music) even though they lived at similar times (Mozart born just before Beethoven).
And there are different types of music: solo piano or other solo instrument, string quartets, piano or violin concertos, symphonies, vocal, opera and so on.
So you may find you like one "style" of classical music, but dislike another (as you would with "pop" music you love one artist but dislike another).
I would listen to many many different types of music from many different composers and you may find you prefer one style of music, or music from one or more composers.
Search in YouTube for things like "popular classics" and you will find dozens of videos to listen to.
Also WATCH classic videos. Watching an orchestra play something like Ravel's Bolero make you realise the work that goes into writing a piece of classical music.
Here is the link to Ravel's Bolero.