how is your 401k doing? i just found out that the 401k plan i’ve been funding with every paycheck for the last 5 years, is down 4% all time

i’m trying to gauge how mad i should be. i’m definitely going to investigate and figure out the fee structure and how the funds are invested. it seems almost criminal for it to be down that much all time. should i manage it on my own? should i pull it all out and use it in a down-payment for a house? or should i hope that the idiots managing it figure out what they’re doing?