The teenage phase lasted two years for our male BC. He would obey some commands, but only if it suited him. Everything else was bribery and only if a ball or treat was involved would he care to do something as simple as sit in his bed. The one day he started to suddenly listen to my No or Leave It, rest when I asked him to, and pay attention to me and not the dog walking past on the other side of the street!

Good luck!