‘”For one, I think we’ve obviously been through a lot of adversity together, and I think we’re probably sick of it,” said Eichel, who grew up a 40-minute drive from the Bruins’ home ice and starred during his one season at Boston University. “The last few years it’s not been easy. With the way our season started this year, I think we have a lot of confidence in each other and belief. We think we can win every game we play.”‘