i would just start playing it to be honest. Theoretical openings don’t mean anything if your opponent doesn’t know theory to begin with. I know the first 16 moves of the Botvinnik Semi-Slav but that doesn’t help me when no one plays it and if no one plays the main lines.
Also, opening mistakes are easy to fix so don’t get so hung up about it. Learn the ideas, understand your moves, and create threats and there should be little to complain about
Levi G.Chess tells that unless you're above 1600-1800 and need a sicilian don't go in there
Levy has a particular opinion which is not agreed upon by other chess coaches. There are a lot of variations and dangerous lines in any opening you play like the Caro-Kann, French, Pirc, etc.
It's best to play the opening you enjoy most so you stay motivated.
Also the discussion of this thread is not about whether or not someone should play the Sicilian. The discussion is asking for advice for someone who is already learning the Sicilian.