To require a great amount of courage, resolve, or integrity (to do something). It must have taken a lot of nerve to stand up to your boss like that.It's certainly possible, but it's going to take a lot of nerve.
take a lot of nerve
1. tv. to utilize a large reserve of rudeness (to behave so badly). That took a lot of nerve! You took my parking place!
2. tv. to require courage. He climbed the mountain with a bruised foot. That took a lot of nerve.