Czech absinthe is terrible for the most part. Also the whole lighting the sugar cube of fire is pointless and adds nothing to a good absinthe. Try St. George it’s an absinthe produced in the states, do 3 to 4 parts water to 1 part absinthe. Sugar is optional depending on personal preference for sweetness. Of course if you dont enjoy black licorice you probably wont ever like absinthe.
To chime in with those above: the “Czech ritual” is a gross debasement of what a good absinthe is all about. Please give it a try with a -good- ab presented properly. Much, much information at wormwoodsociety.org.