in real life, dental procedures are the least of your worries. dealing with human is the most difficult part (staff problems, employer problem, and patient problem).
As you prep more and more and reach in a thousand repetition, the dentistry becomes more natural and intuitive. In real life, no patient will like it to open their mouth for 1 hour straight for you to prep a crown or a filling restoration. 10-15 min crown prep is the max. and filling prep is about 5-10 min. but again, in real life, caries is big and extensive and you are not restricted to the criteria set in sim lab.
some people, it gets better as they accept things that cannot be changed ( have to deal with crazy human here and there or more often than not) and some hate it to the gut and go back to teach and have to deal with the stupid lame administration that every dental school has.
at least look on the bright side you have decent prep now unlike some students for the life of their souls cannot pull out even decent prep after 3 hours.
dentistry, after all is a business, your employer or yourself when you are your own boss, have to cover overhead expenses (rent, equipment lease, supply fee, staff payroll, utilities). that means every day you have to make certain amount of money to cover that. if you don't, then the business you are working for is going under. when business is going under they only have two choices
1. make changes (restructuring by firing the staff and/or the dentist and replace them with better people)
2. going under and close the door
in real life, if you spend 2 hours for a crown prep that pays 800-900$ PPO fee then good luck! it is not economically feasible. it is hard to accept this but the sooner you look at this from the business side, the better your life will be.