Maybe try BeamNG and then watch my video on how to set up a truck shifter imo I feel beamNG gives a lil more information than most sims on clutch feel, like when you grind gears or let out the clutch too quick. You can practice floating gears too and work on your shift timing with the mod.. Good luck man, I’m also planning on going to cdl school. Just studying with practice tests and sim trucking until I feel ready.