going berserk (verb) flip out: lose one's cool
Sinonime: abecedarian,
amateur, apprentice, buckwheater, catechumen, colt,
fish*,
fledgling, greenhorn, greenie, initiate, learner, neophyte, new kid on the block, new person, newcomer, novice, novitiate, probationer, recruit, starter, student, tenderfoot, trainee, tyro
Antonime: expert, old hand, professional,
veteran