First of all, don't think too much about the 'difficult'
missions, just concentrate on your training and you'll be
fine.
you're posted to an airforce unit, which means stay out unless
you're on duty, that is a much better deal than say being posted to
an army combat unit, where you're staying in on weekdays, with the
possibility of weekend duties.
Studying for tests and procedures, that is nothing compared to
training for combat missions and SOC, and the knowledge you can
take with you into the civilian world.