The three wheeler I had was equipped with a semi-automatic 5 speed transmission, no clutch and both hand levers operated brakes, so if yours was like that, the simple answer is no. Other than giving you a concept of what a laboring engine sounds like and what it sounds like when it’s time to shift, that does little to prepare you for the bike.
Good news is; I got rid of that three wheeler because every time someone came up to the farm and used it they got hurt ! I consider a full out motorcycle far safer than the experience I had with that trike. It steered like crap, particularly when it went up on 2 wheels, ( which was frequent) went way too fast ( what were they thinking when they geared them for such speed ) , ran over your leg the instant you put a foot down and flipped backwards way too quick going up steep hills.
I concur with WeponZero on the back pack being best, although it will be even hotter on your back from the extra layers ! I trust gloves are on your list. You don’t need to spend a fortune, personally I prefer the inexpensive mechanics type gloves with a single layer palm, as they don’t give you calluses as badly. Any gloves are better than none, because in a spill your reflex is to extend your hand and break the fall. ( which is a bad idea by the way )
For what it’s worth, I always ride wearing gloves and a helmet but seldom any other protective gear ( Garne boots on the Trials bike, moccasin boots on the street bike ) …but then, I do all my falling off on my Trials bike and plan to never crash on the street, so don’t go by me on the rest of the gear.